Material data base
- Results
-
- Ashikaga
- Banshu
- Hachioji
- Koyaguchi
- Sensyu
127Hits
-
DS.25SS3
DAISADA CO., LTD.
- Number
- DS.25SS3
- date
- 2024/04/02
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Accessories
- Width 30cm
- Length 10m
- Price
- 3,000 yen or more
- Small batch orders available
- Item
-
- Dresses
- Shirtings
- Lace/Embroidery
- Accessories
- Area
- Ashikaga
-
KKC837-1
UNI TEXTILE CO., LTD.
- Number
- KKC837-1
- date
- 2024/06/06
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 60%
- Polyester 40%
- Woven textile
- Width 104cm
- Length 50m
- Weight 165g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- color/design variation available
- Stock service available
- Item
-
- Dresses
- Shirtings
- Pants/Skirts
- Area
- Banshu
A cut-jacquard made from cotton and polyester that can be dyed in two colors.The long cut piles create a feeling of volume, giving it a soft touch. -
4H4445
KUWAMURA CO., LTD.
- Number
- 4H4445
- date
- 2024/07/28
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 108cm
- Length 60m
- Weight 114g/㎡
- Stock service available
- Item
-
- Dresses
- Shirtings
- Area
- Banshu
-
KW7001
KOWA COMPANY, LTD.
- Number
- KW7001
- date
- 2024/01/12
- Material
-
- Cotton
- Nyron
- Mixture
-
- COTTON 70%
- Nylon 30%
- Woven textile
- Width 148cm
- Length 50m
- Weight 280g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- color/design variation available
- Stock service available
- Small batch orders available
- Area
- Sensyu
INVISTA's trademark nylon, Cordura nylon and cotton are blended to create a one-of-a-kind material. It is woven into a military ripstop. -
KK-5995
KAGEYAMA CO., LTD.
- Sustainable raw materials
-
1-a Organic materials, biodegradable natural fibers
- Number
- KK-5995
- date
- 2023/10/12
- Material
-
- Cotton
- Linen/Rammie
- Mixture
-
- COTTON 70%
- Linen/Rammie 30%
- Woven textile
- Width 144cm
- Length 50m
- Weight 168g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- Stock service available
- color/design variation available
- Item
-
- Shirtings
- Pants/Skirts
- Other
- Area
- Banshu
-
KG-1496
KAGEYAMA CO., LTD.
- Number
- KG-1496
- date
- 2023/10/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 109cm
- Length 40m
- Weight 246g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- Stock service available
- color/design variation available
- Item
-
- Shirtings
- Pants/Skirts
- Other
- Area
- Banshu
-
BT24
BELL TEX CO., LTD.
- Number
- BT24
- date
- 2024/01/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Function
-
- Stretch
- Knitted textile
- Width 175cm
- Length 30m
- Weight 258g/㎡
- Stock service available
- color/design variation available
- Small batch orders available
- Item
-
- Suits
- Jackets
- Dresses
- Shirtings
- Pants/Skirts
- Sportswear
- Inner wear/lingerie
- Interior
- Sundry items
- Area
- Wakayama
Compact Rich Honeycomb
High-gage honeycomb made from compact yarn and silketed.
This material has a beautifully finished honeycomb structure that gives it a casual look.-
- Enquiry by e-mail
-
- TEL
- 03-5669-5101
-
RR6627
ROKAL Inc.
- Number
- RR6627
- date
- 2024/04/02
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 154cm
- Length 50m
- Weight 145g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- color/design variation available
- Stock service available
- Item
-
- Jackets
- Shirtings
- Pants/Skirts
- Area
- Banshu
-
BT38
BELL TEX CO., LTD.
- Sustainable raw materials
-
1-b Recycled materials/upcycling materials
- Number
- BT38
- date
- 2024/01/12
- Material
-
- Cotton
- Polyester
- Regenerated fiber
- Mixture
-
- Polyester 52%
- COTTON 35%
- Rayon 13%
- Function
-
- Stretch
- Knitted textile
- Width 155cm
- Length 40m
- Weight 223g/㎡
- Stock service available
- color/design variation available
- Small batch orders available
- Item
-
- Dresses
- Shirtings
- Sportswear
- Inner wear/lingerie
- Interior
- Sundry items
- Area
- Sensyu
Made from a blend of cotton, rayon, and polyester. An original fabric that uses recycled polyester and is spun more compactly to reduce fuzz.
Sustainable material with just the right amount of softnes-
- Enquiry by e-mail
-
- TEL
- 03-5669-5101
-
KG-1496
KAGEYAMA CO., LTD.
- Number
- KG-1496
- date
- 2023/10/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 109cm
- Length 40m
- Weight 246g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- Stock service available
- color/design variation available
- Item
-
- Shirtings
- Pants/Skirts
- Other
- Area
- Banshu
-
BT29
BELL TEX CO., LTD.
- Number
- BT29
- date
- 2024/01/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Function
-
- Stretch
- Knitted textile
- Width 165cm
- Length 31m
- Weight 231g/㎡
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Suits
- Jackets
- Dresses
- Shirtings
- Sportswear
- Inner wear/lingerie
- Japanese-style clothing (kimono)
- Interior
- Sundry items
- Area
- Sensyu
A high-gage jersey made of 28G knitted original yarn made from high-quality extra long cotton.
A hiIt is a material that has a shine but also allows you to feel the bulge of the cotton threads.
-
- Enquiry by e-mail
-
- TEL
- 03-5669-5101
-
KG1497
KAGEYAMA CO., LTD.
- Number
- KG1497
- date
- 2024/04/02
- Material
-
- Cotton
- Silk
- Mixture
-
- COTTON 92%
- Silk 8%
- Woven textile
- Width 144cm
- Length 50m
- Weight 135g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- Stock service available
- color/design variation available
- Item
-
- Shirtings
- Area
- Banshu
-
NP7225-1ZH
SANYO SENKO CO., LTD.
- Number
- NP7225-1ZH
- date
- 2024/01/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 143cm
- Length 23m
- Weight 340g/㎡
- Small batch orders available
- color/design variation available
- Item
-
- Suits
- Jackets
- Pants/Skirts
- Area
- Bichu/Bingo
Pigmented fabric is coated with foil.
The color of the pigment can be seen through the foil, making it look gold depending on how the light hits it. -
4H2023
KUWAMURA CO., LTD.
- Number
- 4H2023
- date
- 2024/02/07
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 112cm
- Length 60m
- Weight 130g/㎡
- Stock service available
- Item
-
- Dresses
- Shirtings
- Area
- Banshu
-
3588
KUWAMURA CO., LTD.
- Sustainable raw materials
-
1-a Organic materials, biodegradable natural fibers
- Number
- 3588
- date
- 2024/02/07
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 116cm
- Length 60m
- Weight 129g/㎡
- Price
- Within 1,000 yen
- Stock service available
- color/design variation available
- Item
-
- Dresses
- Shirtings
- Area
- Banshu
-
STL-9221
KUWAMURA CO., LTD.
- Number
- STL-9221
- date
- 2024/02/07
- Material
-
- Cotton
- Linen/Rammie
- Mixture
-
- COTTON 88%
- Linen/Rammie 12%
- Woven textile
- Width 118cm
- Length 60m
- Weight 144g/㎡
- Stock service available
- Item
-
- Jackets
- Shirtings
- Pants/Skirts
- Area
- Banshu
-
14386
SUNWELL CO., LTD.
- Number
- 14386
- date
- 2024/01/12
- Material
-
- Cotton
- Silk
- Mixture
-
- COTTON 70%
- Silk 30%
- Woven textile
- Width 114cm
- Length 60m
- Weight 124g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- Stock service available
- Item
-
- Jackets
- Dresses
- Shirtings
- Area
- Banshu
Silk Brend-
- Enquiry by e-mail
-
- TEL
- 06-6233-1321
-
92384s
OCHIAI LACE CO., LTD.
- Number
- 92384s
- date
- 2024/04/01
- Material
-
- Polyester
- Nyron
- Regenerated fiber
- Other
- Mixture
-
- Nylon 62%
- Polyester 20%
- Rayon 17%
- Polyurethane 1%
- Accessories
- Price
- Within 1,000 yen
- Small batch orders available
- Item
-
- Suits
- Jackets
- Dresses
- Shirtings
- Pants/Skirts
- Lace/Embroidery
- Interior
- Sundry items
- Accessories
- Area
- Ashikaga
クラシックな繊細柄を
敢えて工業資材原料を用いて作ることで、
ミスマッチな新しさを演出します。 -
95170
KUWAMURA CO., LTD.
- Number
- 95170
- date
- 2024/07/28
- Material
-
- Cotton
- Other
- Mixture
-
- COTTON 43%
- Rayon 56%
- Polyurethane 1%
- Woven textile
- Width 110cm
- Length 60m
- Weight 121g/㎡
- Stock service available
- Item
-
- Dresses
- Shirtings
- Area
- Banshu
-
92573
OCHIAI LACE CO., LTD.
- Number
- 92573
- date
- 2023/10/12
- Material
-
- Woolen
- Regenerated fiber
- Other
- Mixture
-
- Acrylic 63%
- Wool 27%
- Rayon 10%
- Accessories
- Small batch orders available
- Item
-
- Jackets
- Coats
- Dresses
- Pants/Skirts
- Lace/Embroidery
- Interior
- Sundry items
- Accessories
- Area
- Ashikaga
-
KKC680 D/#1
UNI TEXTILE CO., LTD.
- Number
- KKC680 D/#1
- date
- 2024/02/07
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 50%
- Polyester 50%
- Function
-
- Easy care
- Woven textile
- Width 110cm
- Length 50m
- Weight 109g/㎡
- Stock service available
- Item
-
- Jackets
- Dresses
- Shirtings
- Japanese-style clothing (kimono)
- Area
- Banshu
Dyed polyester/cotton jacquard -
FF1-525
FUJISAKI TEXTILE CO., LTD.
- Sustainable raw materials
-
1-b Recycled materials/upcycling materials
- Number
- FF1-525
- date
- 2024/06/06
- Material
-
- Cotton
- Mixture
-
- COTTON 50%
- Polyester 50%
- Woven textile
- Width 112cm
- Length 50m
- Weight 260g/㎡
- Stock service available
- Item
-
- Jackets
- Coats
- Dresses
- Shirtings
- Interior
- Sundry items
- Accessories
- Other
- Area
- Banshu
-
5024-1363-1
HOKKOH CO., LTD.
- Number
- 5024-1363-1
- date
- 2024/06/06
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 110cm
- Length 55m
- Weight 90g/㎡
- Stock service available
- Item
-
- Dresses
- Shirtings
- Printed fabrics
- Area
- Hachioji
Using shuttle machine to weave the base fabric which gives soft handle and have selvage for both edge -
KG-1486
KAGEYAMA CO., LTD.
- Number
- KG-1486
- date
- 2024/04/02
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 112cm
- Length 35m
- Weight 159g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- color/design variation available
- Stock service available
- Item
-
- Dresses
- Shirtings
- Interior
- Sundry items
- Area
- Banshu
-
92574
OCHIAI LACE CO., LTD.
- Number
- 92574
- date
- 2023/10/12
- Material
-
- Woolen
- Regenerated fiber
- Other
- Mixture
-
- Acrylic 50%
- Wool 30%
- Rayon 20%
- Accessories
- Small batch orders available
- Item
-
- Suits
- Jackets
- Dresses
- Pants/Skirts
- Denim
- Lace/Embroidery
- Interior
- Sundry items
- Accessories
- Area
- Ashikaga
-
KW1100
KOWA COMPANY, LTD.
- Number
- KW1100
- date
- 2024/01/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 110cm
- Length 54m
- Weight 80g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- color/design variation available
- Stock service available
- Small batch orders available
- Area
- Sensyu
Fine yarns are used to create an organza-like touch. A very unique touch of delicacy and crispness was achieved. -
91985
OCHIAI LACE CO., LTD.
- Number
- 91985
- date
- 2024/04/01
- Material
-
- Polyester
- Nyron
- Regenerated fiber
- Other
- Mixture
-
- Nylon 38%
- Rayon 36%
- Other 21%
- Polyurethane 5%
- Accessories
- Price
- Between 1,001 yen and 1,500 yen
- Small batch orders available
- Item
-
- Jackets
- Coats
- Dresses
- Shirtings
- Pants/Skirts
- Lace/Embroidery
- Interior
- Sundry items
- Accessories
- Area
- Ashikaga
-
KK-5995
KAGEYAMA CO., LTD.
- Sustainable raw materials
-
1-a Organic materials, biodegradable natural fibers
- Number
- KK-5995
- date
- 2023/10/12
- Material
-
- Cotton
- Linen/Rammie
- Mixture
-
- COTTON 70%
- Linen/Rammie 30%
- Woven textile
- Width 144cm
- Length 50m
- Weight 168g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- Stock service available
- color/design variation available
- Item
-
- Shirtings
- Other
- Area
- Banshu
-
RW-280
KOYAGUCHI PILE FABRIC
- Sustainable raw materials
-
1-b Recycled materials/upcycling materials
- Number
- RW-280
- date
- 2023/10/19
- Material
-
- Cotton
- Regenerated fiber
- Mixture
-
- Wool 60%
- Nylon 15%
- COTTON 25%
- Function
-
- Heat-generating/moisture retention
- Knitted textile
- Width 137cm
- Length 30m
- Weight 490g/㎡
- Price
- Between 2,001 yen and 3,000 yen
- color/design variation available
- Small batch orders available
- Item
-
- Jackets
- Coats
- Shirtings
- Sportswear
- Area
- Koyaguchi
-
3580
KUWAMURA CO., LTD.
- Sustainable raw materials
-
1-a Organic materials, biodegradable natural fibers
- Number
- 3580
- date
- 2024/07/28
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 112cm
- Length 60m
- Weight 100g/㎡
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Shirtings
- Area
- Banshu
-
KW1081
KOWA COMPANY, LTD.
- Number
- KW1081
- date
- 2024/01/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 140cm
- Length 50m
- Weight 100g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- color/design variation available
- Stock service available
- Small batch orders available
- Item
-
- Dresses
- Shirtings
- Area
- Sensyu
This material is woven into a light moleskin using 100/2 threads of Supima cotton, which is extra-long staple cotton. We have created a unique touch. -
KM-70460
KAGEYAMA CO., LTD.
- Number
- KM-70460
- date
- 2024/04/01
- Material
-
- Cotton
- Linen/Rammie
- Mixture
-
- COTTON 70%
- Linen/Rammie 30%
- Woven textile
- Width 112cm
- Length 50m
- Weight 105g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- Stock service available
- color/design variation available
- Item
-
- Shirtings
- Area
- Banshu
-
92575
OCHIAI LACE CO., LTD.
- Number
- 92575
- date
- 2023/10/12
- Material
-
- Woolen
- Regenerated fiber
- Other
- Mixture
-
- Rayon 50%
- Acrylic 30%
- Wool 20%
- Accessories
- Small batch orders available
- Item
-
- Suits
- Jackets
- Coats
- Dresses
- Shirtings
- Pants/Skirts
- Lace/Embroidery
- Japanese-style clothing (kimono)
- Interior
- Sundry items
- Accessories
- Area
- Ashikaga
-
RR6619
ROKAL Inc.
- Number
- RR6619
- date
- 2024/04/02
- Material
-
- Regenerated fiber
- Mixture
-
- Rayon 100%
- Woven textile
- Width 114cm
- Length 50m
- Weight 160g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- color/design variation available
- Stock service available
- Item
-
- Dresses
- Shirtings
- Area
- Banshu
-
92570
OCHIAI LACE CO., LTD.
- Number
- 92570
- date
- 2024/04/01
- Material
-
- Nyron
- Regenerated fiber
- Mixture
-
- Nylon 55%
- Rayon 45%
- Accessories
- Price
- Within 1,000 yen
- Item
-
- Suits
- Jackets
- Coats
- Dresses
- Pants/Skirts
- Lace/Embroidery
- Interior
- Sundry items
- Accessories
- Area
- Ashikaga
-
TAOG9050CT
SANYO SENKO CO., LTD.
- Sustainable raw materials
-
1-a Organic materials, biodegradable natural fibers
- Sustainable production process
-
2-a Optimized dyeing and finishing
- Number
- TAOG9050CT
- date
- 2024/01/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 145cm
- Length 50m
- Price
- Between 1,001 yen and 1,500 yen
- Small batch orders available
- Item
-
- Jackets
- Pants/Skirts
- Area
- Bichu/Bingo
Chintz process on heavy twill gives the material a glossy and silky touch. -
KYC849 D/#6
UNI TEXTILE CO., LTD.
- Number
- KYC849 D/#6
- date
- 2024/02/07
- Material
-
- Cotton
- Polyester
- Mixture
-
- Polyester 75%
- COTTON 25%
- Function
-
- Easy care
- Woven textile
- Width 110cm
- Length 50m
- Weight 156g/㎡
- Stock service available
- Item
-
- Suits
- Jackets
- Dresses
- Shirtings
- Pants/Skirts
- Japanese-style clothing (kimono)
- Area
- Banshu
Yarn dyed polyester/cotton cut jacquard -
35490
SUNWELL CO., LTD.
- Number
- 35490
- date
- 2024/04/01
- Material
-
- Cotton
- Mixture
-
- COTTON 99%
- Polyurethane 1%
- Woven textile
- Width 108cm
- Length 60m
- Weight 86g/㎡
- Price
- Within 1,000 yen
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Dresses
- Shirtings
- Area
- Banshu
-
- Enquiry by e-mail
-
- TEL
- 03-5772-8914
-
95166
KUWAMURA CO., LTD.
- Number
- 95166
- date
- 2024/07/28
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 112cm
- Length 60m
- Weight 280g/㎡
- Stock service available
- Item
-
- Jackets
- Shirtings
- Pants/Skirts
- Area
- Banshu
-
91381s
OCHIAI LACE CO., LTD.
- Number
- 91381s
- date
- 2024/04/01
- Material
-
- Polyester
- Nyron
- Other
- Mixture
-
- Nylon 74%
- Polyester 25%
- Polyurethane 1%
- Accessories
- Price
- Within 1,000 yen
- Small batch orders available
- Item
-
- Suits
- Jackets
- Coats
- Dresses
- Shirtings
- Pants/Skirts
- Lace/Embroidery
- Interior
- Sundry items
- Accessories
- Area
- Ashikaga
-
92576
OCHIAI LACE CO., LTD.
- Number
- 92576
- date
- 2023/10/12
- Material
-
- Woolen
- Polyester
- Regenerated fiber
- Other
- Mixture
-
- Acrylic 52%
- Wool 25%
- Polyester 18%
- Rayon 5%
- Accessories
- Small batch orders available
- Item
-
- Jackets
- Coats
- Dresses
- Shirtings
- Pants/Skirts
- Lace/Embroidery
- Interior
- Sundry items
- Accessories
- Area
- Ashikaga
-
K3001
KAGEYAMA CO., LTD.
- Number
- K3001
- date
- 2024/04/02
- Material
-
- Cotton
- Linen/Rammie
- Mixture
-
- COTTON 76%
- Linen/Rammie 24%
- Woven textile
- Width 108cm
- Length 50m
- Weight 84g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- color/design variation available
- Stock service available
- Item
-
- Shirtings
- Area
- Banshu
-
95167
KUWAMURA CO., LTD.
- Number
- 95167
- date
- 2024/07/28
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 112cm
- Length 60m
- Weight 218g/㎡
- Stock service available
- Item
-
- Jackets
- Dresses
- Shirtings
- Pants/Skirts
- Area
- Banshu
-
CH-6346
KUWAMURA CO., LTD.
- Number
- CH-6346
- date
- 2024/02/07
- Material
-
- Cotton
- Regenerated fiber
- Mixture
-
- COTTON 52%
- Rayon 48%
- Woven textile
- Width 108cm
- Weight 165g/㎡
- Stock service available
- Item
-
- Shirtings
- Area
- Banshu
-
BD1987
KOWA COMPANY, LTD.
- Sustainable raw materials
-
1-a Organic materials, biodegradable natural fibers
- Number
- BD1987
- date
- 2024/01/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 136cm
- Length 50m
- Weight 340g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- Stock service available
- color/design variation available
- Small batch orders available
- Item
-
- Pants/Skirts
- Area
- Sensyu
This sustainable material is made from carefully selected organic cotton, with triple twisted yarn luxuriously beaten into the warp and weft. -
XST
TAIYO SEN-I CO., LTD.
- Number
- XST
- date
- 2023/10/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 114cm
- Length 60m
- Weight 108g/㎡
- Price
- Within 1,000 yen
- color/design variation available
- Stock service available
- Item
-
- Dresses
- Shirtings
- Area
- Banshu
Stripe series with Indian extra-long cotton -
M-48826
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-48826
- date
- 2024/06/06
- Material
-
- Cotton
- Regenerated fiber
- Mixture
-
- COTTON 94%
- Rayon 6%
- Price
- 3,000 yen or more
- Area
- Sensyu
This is heavy french terry that the face side of the yarn is used by cotton/rayon.
It is characterized by its unique softness and tension.-
- Enquiry by e-mail
-
- TEL
- 06-6451-1371
-
F6-518
FUJISAKI TEXTILE CO., LTD.
- Number
- F6-518
- date
- 2024/06/06
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 110cm
- Length 60m
- Stock service available
- Item
-
- Jackets
- Dresses
- Shirtings
- Interior
- Sundry items
- Area
- Banshu