Material data base
- Results
-
- Sumida
- Niigata
- Koyaguchi
- Oota
77Hits
-
KQ7474
KTC CO., LTD
- Number
- KQ7474
- date
- 2023/10/12
- Material
-
- Cotton
- Worsted wool
- Mixture
-
- Wool 65%
- COTTON 35%
- Woven textile
- Width 108cm
- Length 50m
- Weight 124g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- Small batch orders available
- Item
-
- Jackets
- Dresses
- Shirtings
- Area
- Niigata
-
- Enquiry by e-mail
-
- TEL
- 025-381-5153
-
ASK-C-1100
ASAKI CO., LTD.
- Sustainable raw materials
-
1-b Recycled materials/upcycling materials
- Number
- ASK-C-1100
- date
- 2024/04/02
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 70%
- Polyester 30%
- Woven textile
- Width 106cm
- Length 50m
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Dresses
- Shirtings
- Area
- Niigata
A sustainable material that uses Ecopet, a recycled polyester blend, for the weft.
Willow fabric made with Ecopet's strong twist yarn. -
ASK-SS-2004
ASAKI CO., LTD.
- Number
- ASK-SS-2004
- date
- 2024/04/02
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 92%
- Polyester 8%
- Woven textile
- Width 106cm
- Length 50m
- Small batch orders available
- Stock service available
- color/design variation available
- Item
-
- Dresses
- Shirtings
- Area
- Niigata
Fabric with cord sucker. A natural texture was created by twisting the warp and weft. -
M-49478
MINAMI CO., LTD.
- Sustainable raw materials
-
1-b Recycled materials/upcycling materials
- Sustainable production process
-
2-a Optimized dyeing and finishing2-b No hazardous chemicals
- Number
- M-49478
- date
- 2024/06/06
- Material
-
- Polyester
- Mixture
-
- Polyester 100%
- Knitted textile
- Width 145cm
- Length 30m
- Price
- 3,000 yen or more
- Area
- Koyaguchi
This is a boa with a softer texture and shorter pile length by taking the image of a pattern from vintage clothes.
-
- Enquiry by e-mail
-
- TEL
- 06-6451-1371
-
DAW-171
ASAKI CO., LTD.
- Number
- DAW-171
- date
- 2023/10/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 110cm
- Length 50m
- Small batch orders available
- Item
-
- Shirtings
- Sundry items
- Area
- Niigata
100% cotton Calzedoby fabric.
Melange feeling by color twist heather.
Soft brushed on both sides with a warm feel. -
ASK-AW-1802
ASAKI CO., LTD.
- Number
- ASK-AW-1802
- date
- 2023/10/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Width 110cm
- Length 50m
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Shirtings
- Sundry items
- Area
- Niigata
100% cotton material.
Melange feeling by color twist heather.
Soft brushed on both sides with a warm feel. -
402_24MD0001
KIYOHARA & CO., LTD.
- Number
- 402_24MD0001
- date
- 2024/06/06
- Material
-
- Other
- Mixture
-
- Other 100%
- Accessories
- Price
- Within 1,000 yen
- Small batch orders available
- color/design variation available
- Item
-
- Suits
- Jackets
- Coats
- Dresses
- Shirtings
- Pants/Skirts
- Accessories
- Area
- Oota
・With special plating technique for natural buttons
・Whole process is done in Japan
-
YRK-001A
ASAKI CO., LTD.
- Sustainable raw materials
-
1-b Recycled materials/upcycling materials
- Number
- YRK-001A
- date
- 2023/10/12
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 72%
- Polyester 28%
- Woven textile
- Width 110cm
- Length 50m
- Small batch orders available
- Item
-
- Shirtings
- Area
- Niigata
A sustainable material that uses recycled polyester blended ECO PET for the weft.
Twill fabric woven in a yoroke weave.
Brushed. -
ASK-C-107
ASAKI CO., LTD.
- Number
- ASK-C-107
- date
- 2024/04/02
- Material
-
- Cotton
- Linen/Rammie
- Mixture
-
- COTTON 86%
- Linen/Rammie 14%
- Woven textile
- Width 108cm
- Length 50m
- Small batch orders available
- color/design variation available
- Stock service available
- Item
-
- Dresses
- Shirtings
- Area
- Niigata
Cotton linen material. Voile fabric with a slightly sheer feel. Texture due to twisting and surface changes due to catching wrinkles. -
ASK-C-1102
ASAKI CO., LTD.
- Sustainable raw materials
-
1-b Recycled materials/upcycling materials
- Number
- ASK-C-1102
- date
- 2024/04/02
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 70%
- Polyester 30%
- Woven textile
- Width 106cm
- Length 50m
- Small batch orders available
- Stock service available
- color/design variation available
- Item
-
- Dresses
- Shirtings
- Area
- Niigata
A sustainable material that uses recycled polyester blended ECO PET for the weft.
Yoryu fabric using Ecopet's strong twisted yarn. -
UP-PLATE
IRIS CO., LTD.
- Sustainable corporate social responsibility
-
3 Sustainable corporate social responsibility
- Number
- UP-PLATE
- date
- 2023/08/04
- Material
-
- Polyester
- Other
- Accessories
- Small batch orders available
- color/design variation available
- Item
-
- Suits
- Jackets
- Coats
- Sportswear
- Sundry items
- Accessories
- Area
- Oota
Small part that is a focal point of the design, made of polyester material with a special plating process. -
ME19544SSジャガード
MATSUBARA CO., LTD.
- Number
- ME19544SSジャガード
- date
- 2023/10/12
- Material
-
- Polyester
- Nyron
- Mixture
-
- Nylon 47%
- Polyester 44%
- Polyurethane 9%
- Function
-
- Stretch
- Absorbent/quick-drying
- Cool/moisture transmission
- UV protection
- Knitted textile
- Width 150cm
- Length 50m
- Weight 258g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- Stock service available
- Item
-
- Suits
- Jackets
- Dresses
- Shirtings
- Pants/Skirts
- Sportswear
- Area
- Oota
-
JAH501
KIYOHARA & CO., LTD.
- Number
- JAH501
- date
- 2024/06/06
- Material
-
- Other
- Mixture
-
- Other 50%
- Accessories
- color/design variation available
- Stock service available
- Small batch orders available
- Item
-
- Jackets
- Coats
- Dresses
- Shirtings
- Accessories
- Area
- Oota
・New and Unique design for front hook
・Scratch-resistant design
・Thread-attached so it can be used with any type of clothing -
CS000030N
PANOCO TRADING CO., LTD.
- Sustainable raw materials
-
1-a Organic materials, biodegradable natural fibers
- Sustainable corporate social responsibility
-
3 Sustainable corporate social responsibility
- Number
- CS000030N
- date
- 2024/01/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Knitted textile
- Width 95cm
- Length 25m
- Weight 785g/㎡
- Price
- 3,000 yen or more
- Small batch orders available
- Item
-
- Jackets
- Area
- Koyaguchi
-
H-1155
KOYAGUCHI PILE FABRIC
- Sustainable raw materials
-
1-b Recycled materials/upcycling materials
- Number
- H-1155
- date
- 2023/10/12
- Material
-
- Polyester
- Other
- Mixture
-
- Polyester 50%
- Other 50%
- Knitted textile
- Width 145cm
- Length 30m
- Price
- Between 1,501 yen and 2,000 yen
- Small batch orders available
- Item
-
- Coats
- Sportswear
- Interior
- Sundry items
- Accessories
- Area
- Koyaguchi
-
H-1178
KOYAGUCHI PILE FABRIC
- Number
- H-1178
- date
- 2023/10/12
- Material
-
- Other
- Mixture
-
- Other 100%
- Knitted textile
- Width 150cm
- Length 30m
- Price
- Between 2,001 yen and 3,000 yen
- Small batch orders available
- Item
-
- Coats
- Interior
- Sundry items
- Accessories
- Area
- Koyaguchi
-
ASK-AW-625
ASAKI CO., LTD.
- Number
- ASK-AW-625
- date
- 2023/10/12
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 50%
- Polyester 50%
- Woven textile
- Width 110cm
- Length 50m
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Jackets
- Shirtings
- Sundry items
- Area
- Niigata
Sustainable material using jazznep yarn, which is a blend of recycled cotton and polyester.It features a unique uneven feeling and the texture of nep by melange dyeing.Tweed style.Brushed on one side. -
ASK-C-901
ASAKI CO., LTD.
- Number
- ASK-C-901
- date
- 2024/04/02
- Material
-
- Cotton
- Linen/Rammie
- Mixture
-
- COTTON 88%
- Linen/Rammie 12%
- Woven textile
- Width 108cm
- Length 50m
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Dresses
- Shirtings
- Area
- Niigata
Cotton linen material.
Voile fabric using hard-twisted yarn.
I added color stitching and added accents.
Surface change due to catching wrinkles. -
ASK-AW-1602
ASAKI CO., LTD.
- Number
- ASK-AW-1602
- date
- 2023/10/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 108cm
- Length 50m
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Shirtings
- Sundry items
- Area
- Niigata
100% cotton material.
Warm feeling by shaggy brushed processing.
Tartan check. -
ASK-AW-1901
ASAKI CO., LTD.
- Number
- ASK-AW-1901
- date
- 2023/10/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 108cm
- Length 50m
- color/design variation available
- Small batch orders available
- Stock service available
- Item
-
- Shirtings
- Sundry items
- Area
- Niigata
100% cotton material.
Warm feeling by shaggy brushed processing.
Ombre check. -
SILICONE-WAPPEN
IRIS CO., LTD.
- Sustainable corporate social responsibility
-
3 Sustainable corporate social responsibility
- Number
- SILICONE-WAPPEN
- date
- 2023/08/04
- Material
-
- Other
- Function
-
- Stretch
- Water-repellent
- Accessories
- Small batch orders available
- color/design variation available
- Item
-
- Sportswear
- Sundry items
- Accessories
- Area
- Oota
A material made by pulverizing and mixing coffee residue and discarded silicone with silicone, which is safe for the human body. -
RMD3051
KUWAMURA CO., LTD.
- Number
- RMD3051
- date
- 2023/08/04
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 112cm
- Length 60m
- Weight 264g/㎡
- Price
- Within 1,000 yen
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Suits
- Jackets
- Coats
- Pants/Skirts
- Area
- Niigata
Tweed fabric is reproduced with 100% cotton. It can be used by both men and women. -
KQ6325
KTC CO., LTD
- Number
- KQ6325
- date
- 2023/10/12
- Material
-
- Worsted wool
- Mixture
-
- Other 49%
- Wool 43%
- Polyester 8%
- Woven textile
- Width 110cm
- Length 50m
- Weight 170g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- Small batch orders available
- Item
-
- Jackets
- Dresses
- Shirtings
- Area
- Niigata
-
- Enquiry by e-mail
-
- TEL
- 025-381-5153
-
WW-2002
KOYAGUCHI PILE FABRIC
- Number
- WW-2002
- date
- 2023/10/12
- Material
-
- Other
- Mixture
-
- Acrylic 100%
- Knitted textile
- Price
- Between 2,001 yen and 3,000 yen
- Small batch orders available
- Stock service available
- color/design variation available
- Item
-
- Jackets
- Coats
- Sundry items
- Accessories
- Area
- Koyaguchi
-
OBUV-SERIES
IRIS CO., LTD.
- Sustainable corporate social responsibility
-
3 Sustainable corporate social responsibility
- Number
- OBUV-SERIES
- date
- 2023/08/04
- Material
-
- Other
- Accessories
- color/design variation available
- Small batch orders available
- Item
-
- Jackets
- Coats
- Dresses
- Sundry items
- Accessories
- Area
- Oota
Gorgeous design rubber cast button. -
EJ1N501
CLOTH JAPAN
- Number
- EJ1N501
- date
- 2024/04/01
- Material
-
- Cotton
- Polyester
- Regenerated fiber
- Mixture
-
- COTTON 60%
- Cupro 38%
- Polyester 2%
- Woven textile
- Width 112cm
- Length 50m
- color/design variation available
- Item
-
- Jackets
- Coats
- Dresses
- Shirtings
- Pants/Skirts
- Area
- Niigata
-
- Enquiry by e-mail
-
- TEL
- 03-5414-2237
-
PTOG-11
ASAKI CO., LTD.
- Sustainable raw materials
-
1-a Organic materials, biodegradable natural fibers
- Number
- PTOG-11
- date
- 2023/10/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 108cm
- Length 50m
- Small batch orders available
- Item
-
- Jackets
- Shirtings
- Area
- Niigata
100% organic cotton sustainable material.
Herringbone check pattern.
Partially used three heathered threads to create a melange feeling.
Warm brushed finish. -
WW-2525
KOYAGUCHI PILE FABRIC
- Number
- WW-2525
- date
- 2023/10/12
- Material
-
- Other
- Mixture
-
- Acrylic 100%
- Knitted textile
- Price
- 3,000 yen or more
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Jackets
- Coats
- Sundry items
- Accessories
- Area
- Koyaguchi
-
ASK-C-1300
ASAKI CO., LTD.
- Number
- ASK-C-1300
- date
- 2024/04/02
- Material
-
- Cotton
- Linen/Rammie
- Mixture
-
- COTTON 87%
- Linen/Rammie 13%
- Woven textile
- Width 106cm
- Length 50m
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Dresses
- Shirtings
- Area
- Niigata
Cotton linen material. Voile fabric with a slightly sheer feel. Texture due to twisting and surface changes due to catching wrinkles. The weft was switched between three colors to create melange feel. -
GRS-PARTS
IRIS CO., LTD.
- Sustainable raw materials
-
1-b Recycled materials/upcycling materials
- Sustainable corporate social responsibility
-
3 Sustainable corporate social responsibility
- Number
- GRS-PARTS
- date
- 2023/08/04
- Material
-
- Nyron
- Other
- Accessories
- Small batch orders available
- Item
-
- Sportswear
- Sundry items
- Accessories
- Area
- Oota
GRS-certified clothing materials. -
ASK-AW-630
ASAKI CO., LTD.
- Sustainable raw materials
-
1-a Organic materials, biodegradable natural fibers
- Number
- ASK-AW-630
- date
- 2023/10/12
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 50%
- Polyester 50%
- Woven textile
- Width 110cm
- Length 50m
- Weight 239g/㎡
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Jackets
- Coats
- Shirtings
- Area
- Niigata
Sustainable material using jazznep yarn, which is a blend of recycled cotton and polyester.It features a unique uneven feeling and the texture of nep by melange dyeing.Tweed style.Brushed on one side. -
ASK-SS-2000
ASAKI CO., LTD.
- Number
- ASK-SS-2000
- date
- 2024/04/02
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 94%
- Polyester 6%
- Woven textile
- Width 106cm
- Length 50m
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Dresses
- Shirtings
- Area
- Niigata
Fabric with cord sucker. A natural texture was created by twisting the warp and weft. -
411_24MD0003
KIYOHARA & CO., LTD.
- Number
- 411_24MD0003
- date
- 2024/06/06
- Material
-
- Other
- Mixture
-
- Other 100%
- Accessories
- Price
- Within 1,000 yen
- color/design variation available
- Small batch orders available
- Item
-
- Suits
- Jackets
- Coats
- Dresses
- Shirtings
- Pants/Skirts
- Accessories
- Area
- Oota
・With special plating technique for natural buttons
・Whole process is done in Japan -
RICE-BUTTON
IRIS CO., LTD.
- Sustainable raw materials
-
1-c Bio-based chemical fibers/other low impact processes and techniques
- Sustainable corporate social responsibility
-
3 Sustainable corporate social responsibility
- Number
- RICE-BUTTON
- date
- 2023/08/04
- Material
-
- Other
- Accessories
- Small batch orders available
- Item
-
- Suits
- Jackets
- Coats
- Sportswear
- Sundry items
- Accessories
- Area
- Oota
Biomass plastic derived from inedible rice. -
25SS-104
NIHON SANMO DYEING CO., LTD.
- Sustainable raw materials
-
1-a Organic materials, biodegradable natural fibers
- Number
- 25SS-104
- date
- 2024/01/12
- Material
-
- Silk
- Mixture
-
- Silk 100%
- Function
-
- Stretch
- Cool/moisture transmission
- Easy care
- Knitted textile
- Width 170cm
- Length 50m
- Weight 144g/㎡
- Price
- 3,000 yen or more
- Item
-
- Dresses
- Inner wear/lingerie
- Area
- Sumida
A soft-fitting knitted fabric made from machine-washable silk thread that stretches freely. -
PRV57SERIES
IRIS CO., LTD.
- Sustainable raw materials
-
1-c Bio-based chemical fibers/other low impact processes and techniques
- Sustainable production process
-
2-b No hazardous chemicals
- Sustainable corporate social responsibility
-
3 Sustainable corporate social responsibility
- Number
- PRV57SERIES
- date
- 2023/08/04
- Material
-
- Other
- Accessories
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Suits
- Jackets
- Coats
- Sundry items
- Accessories
- Area
- Oota
Material containing biourea and rice bran, which are plant-derived raw materials. -
JAH501
KIYOHARA & CO., LTD.
- Number
- JAH501
- date
- 2024/06/06
- Material
-
- Other
- Mixture
-
- Other 50%
- Accessories
- Price
- Within 1,000 yen
- color/design variation available
- Stock service available
- Small batch orders available
- Item
-
- Jackets
- Coats
- Dresses
- Accessories
- Area
- Oota
New and Unique design for front hook
Scratch-resistant design
Thread-attached so it can be used with any type of clothing -
AB8796N
IRIS CO., LTD.
- Sustainable corporate social responsibility
-
3 Sustainable corporate social responsibility
- Number
- AB8796N
- date
- 2023/08/04
- Material
-
- Other
- Accessories
- color/design variation available
- Stock service available
- Small batch orders available
- Item
-
- Pants/Skirts
- Sportswear
- Sundry items
- Accessories
- Area
- Oota
Thin and simple cord end made of brass. -
KQ6425
KTC CO., LTD
- Number
- KQ6425
- date
- 2023/10/12
- Material
-
- Woolen
- Mixture
-
- Wool 62%
- Cupro 38%
- Woven textile
- Width 110cm
- Length 50m
- Weight 164g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- Small batch orders available
- Item
-
- Suits
- Jackets
- Pants/Skirts
- Area
- Niigata
-
- Enquiry by e-mail
-
- TEL
- 025-381-5153
-
KPRO2002
IRIS CO., LTD.
- Sustainable production process
-
2-b No hazardous chemicals
- Sustainable corporate social responsibility
-
3 Sustainable corporate social responsibility
- Number
- KPRO2002
- date
- 2023/08/04
- Material
-
- Other
- Accessories
- Stock service available
- Small batch orders available
- Item
-
- Sportswear
- Sundry items
- Accessories
- Area
- Oota
It is a material with excellent wear resistance and fatigue resistance. It is a lighter material than metal.
A resin buckle that can be easily attached and detached with a simple one-finger action. -
KQ7361
KTC CO., LTD
- Number
- KQ7361
- date
- 2023/10/12
- Material
-
- Cotton
- Worsted wool
- Polyester
- Mixture
-
- Rayon 63%
- Wool 15%
- Polyester 14%
- COTTON 8%
- Woven textile
- Width 110cm
- Length 50m
- Weight 166g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- Small batch orders available
- Item
-
- Jackets
- Dresses
- Shirtings
- Area
- Niigata
-
- Enquiry by e-mail
-
- TEL
- 025-381-5153
-
ASK-AW-1602
ASAKI CO., LTD.
- Number
- ASK-AW-1602
- date
- 2023/10/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 108cm
- Length 50m
- Small batch orders available
- Stock service available
- color/design variation available
- Item
-
- Shirtings
- Sundry items
- Area
- Niigata
100% cotton material.
Warm feeling by shaggy brushed processing.
Tartan check. -
NT-1170
KOYAGUCHI PILE FABRIC
- Number
- NT-1170
- date
- 2023/10/12
- Material
-
- Other
- Mixture
-
- Acrylic 100%
- Knitted textile
- Price
- Between 2,001 yen and 3,000 yen
- Item
-
- Jackets
- Coats
- Sportswear
- Sundry items
- Accessories
- Area
- Koyaguchi
-
KQ5806
KTC CO., LTD
- Number
- KQ5806
- date
- 2023/10/12
- Material
-
- Worsted wool
- Other
- Mixture
-
- Wool 64%
- Cupro 36%
- Woven textile
- Width 108cm
- Length 30m
- Weight 154g/㎡
- Price
- Between 2,001 yen and 3,000 yen
- Small batch orders available
- Item
-
- Suits
- Jackets
- Dresses
- Pants/Skirts
- Area
- Niigata
-
- Enquiry by e-mail
-
- TEL
- 025-381-5153
-
KQ7503
KTC CO., LTD
- Number
- KQ7503
- date
- 2023/10/12
- Material
-
- Cotton
- Other
- Mixture
-
- COTTON 48%
- Cupro 46%
- Polyester 6%
- Woven textile
- Width 115cm
- Length 50m
- Weight 109g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- Small batch orders available
- Item
-
- Jackets
- Dresses
- Area
- Niigata
-
- Enquiry by e-mail
-
- TEL
- 025-381-5153
-
453_20MD0034
KIYOHARA & CO., LTD.
- Number
- 453_20MD0034
- date
- 2024/06/06
- Material
-
- Other
- Mixture
-
- Other 100%
- Accessories
- Small batch orders available
- color/design variation available
- Item
-
- Jackets
- Coats
- Dresses
- Accessories
- Area
- OTHER
・Original & unique design bar
・Use with ring to buckle -
KQ7506
KTC CO., LTD
- Number
- KQ7506
- date
- 2023/10/12
- Material
-
- Worsted wool
- Mixture
-
- Cupro 79%
- Wool 21%
- Woven textile
- Width 109cm
- Length 50m
- Weight 108g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- Small batch orders available
- Item
-
- Jackets
- Dresses
- Shirtings
- Area
- Niigata
-
- Enquiry by e-mail
-
- TEL
- 025-381-5153
-
WW-2525
KOYAGUCHI PILE FABRIC
- Number
- WW-2525
- date
- 2023/10/12
- Material
-
- Other
- Mixture
-
- Acrylic 100%
- Function
-
- Heat-generating/moisture retention
- Knitted textile
- Width 120cm
- Length 20m
- Weight 650g/㎡
- Price
- 3,000 yen or more
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Jackets
- Coats
- Sundry items
- Area
- Koyaguchi