Material data base
- Results
-
- color/design variation available
- Stock service available
- Bichu/Bingo
- Banshu
- Koyaguchi
135Hits
-
N-KS575-AKM
KAIHARA CORPORATION
- Sustainable production process
-
2-a Optimized dyeing and finishing
- Sustainable corporate social responsibility
-
3 Sustainable corporate social responsibility
- Number
- N-KS575-AKM
- date
- 2023/10/12
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 76%
- Polyester 22%
- Polyurethane 2%
- Function
-
- Stretch
- Woven textile
- Width 127.8cm
- Length 50m
- Weight 372.9g/㎡
- Price
- Within 1,000 yen
- color/design variation available
- Small batch orders available
- Item
-
- Jackets
- Pants/Skirts
- Denim
- Area
- Bichu/Bingo
-
7578-W
KAIHARA CORPORATION
- Sustainable production process
-
2-a Optimized dyeing and finishing
- Number
- 7578-W
- date
- 2024/04/01
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Length 50m
- Price
- Within 1,000 yen
- Stock service available
- Item
-
- Jackets
- Dresses
- Shirtings
- Pants/Skirts
- Denim
- Area
- Bichu/Bingo
-
BL60000
FUJISAKI TEXTILE CO., LTD.
- Number
- BL60000
- date
- 2023/10/12
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 75%
- Polyester 25%
- Function
-
- Stretch
- Knitted textile
- Width 160cm
- Length 29m
- color/design variation available
- Small batch orders available
- Stock service available
- Item
-
- Suits
- Jackets
- Coats
- Dresses
- Shirtings
- Pants/Skirts
- Japanese-style clothing (kimono)
- Interior
- Sundry items
- Area
- Koyaguchi
-
KW1059
KOWA COMPANY, LTD.
- Sustainable raw materials
-
1-a Organic materials, biodegradable natural fibers
- Number
- KW1059
- date
- 2024/01/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 144cm
- Length 50m
- Weight 390g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- Stock service available
- Small batch orders available
- color/design variation available
- Area
- Bichu/Bingo
Organic cotton was used to produce fabrics that are both rough and elegant. -
KKC555-1
UNI TEXTILE CO., LTD.
- Number
- KKC555-1
- date
- 2024/06/06
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 65%
- Polyester 35%
- Woven textile
- Width 110cm
- Length 50m
- Weight 118g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- Stock service available
- color/design variation available
- Item
-
- Jackets
- Dresses
- Pants/Skirts
- Area
- Banshu
This jacquard is woven in cotton and polyester - it makes less-wrinkle and soft hand feel, and this fabric is made available in two shades -
831ZNK-ST16-4
DUCK TEXTILE CO., LTD.
- Sustainable corporate social responsibility
-
3 Sustainable corporate social responsibility
- Number
- 831ZNK-ST16-4
- date
- 2024/04/01
- Material
-
- Cotton
- Other
- Mixture
-
- COTTON 98%
- Polyurethane 2%
- Function
-
- Stretch
- Woven textile
- Width 132cm
- Length 50m
- Weight 375g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- Small batch orders available
- color/design variation available
- Item
-
- Shirtings
- Pants/Skirts
- Denim
- Accessories
- Area
- Bichu/Bingo
-
VN2202-2
DUCK TEXTILE CO., LTD.
- Sustainable corporate social responsibility
-
3 Sustainable corporate social responsibility
- Number
- VN2202-2
- date
- 2023/10/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 86cm
- Length 25m
- Weight 755g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- Stock service available
- Small batch orders available
- Item
-
- Suits
- Jackets
- Coats
- Pants/Skirts
- Denim
- Interior
- Sundry items
- Accessories
- Area
- Bichu/Bingo
-
RMD3406
KUWAMURA CO., LTD.
- Number
- RMD3406
- date
- 2024/02/07
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 112cm
- Length 60m
- Weight 286g/㎡
- Price
- Within 1,000 yen
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Jackets
- Dresses
- Pants/Skirts
- Area
- Banshu
Multi-stripe with multiple colored threads arranged randomly. It is thick and has a good density, so it can be used for pants and jackets. -
95161
KUWAMURA CO., LTD.
- Number
- 95161
- date
- 2024/02/07
- Material
-
- Cotton
- Regenerated fiber
- Other
- Mixture
-
- COTTON 56%
- Rayon 43%
- Polyurethane 1%
- Woven textile
- Width 110cm
- Length 60m
- Weight 100g/㎡
- Stock service available
- Item
-
- Dresses
- Shirtings
- Area
- Banshu
-
5076-W
KAIHARA CORPORATION
- Sustainable production process
-
2-a Optimized dyeing and finishing
- Number
- 5076-W
- date
- 2024/04/01
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Length 50m
- Price
- Within 1,000 yen
- Stock service available
- Item
-
- Jackets
- Dresses
- Shirtings
- Area
- Bichu/Bingo
-
4H2011/2
KUWAMURA CO., LTD.
- Number
- 4H2011/2
- date
- 2023/08/04
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 65%
- Polyester 35%
- Function
-
- Absorbent/quick-drying
- Easy care
- Woven textile
- Width 120cm
- Length 57m
- Weight 107g/㎡
- Stock service available
- Item
-
- Jackets
- Dresses
- Shirtings
- Pants/Skirts
- Area
- Banshu
-
14293
SUNWELL CO., LTD.
- Sustainable raw materials
-
1-a Organic materials, biodegradable natural fibers
- Number
- 14293
- date
- 2024/01/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 116cm
- Length 60m
- Weight 131g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- Stock service available
- Item
-
- Jackets
- Coats
- Shirtings
- Area
- Banshu
100%Organic Cotton
Special Washer Finish-
- Enquiry by e-mail
-
- TEL
- 06-6233-1321
-
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
- Stock service available
- color/design variation available
- Item
-
- Jackets
- Shirtings
- Pants/Skirts
- Area
- Banshu
-
BD7253
COSMO TEXTILE CO., LTD.
- Number
- BD7253
- date
- 2023/10/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 135cm
- Length 50m
- Weight 300g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- color/design variation available
- Stock service available
- Item
-
- Shirtings
- Pants/Skirts
- Area
- Bichu/Bingo
-
FK103-E35
KAIHARA CORPORATION
- Number
- FK103-E35
- date
- 2024/04/02
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Length 50m
- Price
- Within 1,000 yen
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Jackets
- Pants/Skirts
- Denim
- Area
- Bichu/Bingo
-
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
-
95166
KUWAMURA CO., LTD.
- Number
- 95166
- date
- 2023/08/04
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 112cm
- Length 60m
- Weight 223g/㎡
- Price
- Within 1,000 yen
- Stock service available
- Item
-
- Shirtings
- Area
- Banshu
-
OWE35381
OHARAYASENI CO., LTD.
- Number
- OWE35381
- date
- 2024/02/07
- Material
-
- Linen/Rammie
- Other
- Mixture
-
- Linen/Rammie 46%
- Other 54%
- Woven textile
- Width 110cm
- Length 25m
- Weight 267g/㎡
- Price
- Between 2,001 yen and 3,000 yen
- Stock service available
- Item
-
- Jackets
- Pants/Skirts
- Area
- Bichu/Bingo
The fabric is densely woven using linen for the warp and Japanese paper for the weft, and dyed with Japanese ink. -
MS900-NSO
KAIHARA CORPORATION
- Sustainable production process
-
2-a Optimized dyeing and finishing
- Number
- MS900-NSO
- date
- 2024/04/01
- Material
-
- Cotton
- Mixture
-
- COTTON 87%
- Polyurethane 13%
- Function
-
- Stretch
- Woven textile
- Length 50m
- Price
- Between 1,001 yen and 1,500 yen
- Stock service available
- Item
-
- Jackets
- Pants/Skirts
- Denim
- Area
- Bichu/Bingo
-
3273-89
KAIHARA CORPORATION
- Sustainable production process
-
2-a Optimized dyeing and finishing
- Number
- 3273-89
- date
- 2024/04/01
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Length 50m
- Price
- Within 1,000 yen
- Stock service available
- Item
-
- Jackets
- Dresses
- Pants/Skirts
- Denim
- Area
- Bichu/Bingo
-
RMD3212
KAWAGOSHIMASA CO., LTD.
- Number
- RMD3212
- date
- 2024/06/04
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 112cm
- Length 60m
- Price
- Between 1,001 yen and 1,500 yen
- color/design variation available
- Small batch orders available
- Stock service available
- Item
-
- Suits
- Jackets
- Coats
- Dresses
- Shirtings
- Pants/Skirts
- Area
- Banshu
Cotton tweed -
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
-
FK103-SO
KAIHARA CORPORATION
- Sustainable production process
-
2-a Optimized dyeing and finishing
- Number
- FK103-SO
- date
- 2024/04/01
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Length 50m
- Price
- Within 1,000 yen
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Jackets
- Dresses
- Pants/Skirts
- Denim
- Area
- Bichu/Bingo
-
RR3009
ROKAL Inc.
- Number
- RR3009
- date
- 2024/04/02
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 110cm
- Length 25m
- Weight 170g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- Stock service available
- color/design variation available
- Item
-
- Shirtings
- Area
- Banshu
-
FY1133KI-1204KM
DUCK TEXTILE CO., LTD.
- Sustainable corporate social responsibility
-
3 Sustainable corporate social responsibility
- Number
- FY1133KI-1204KM
- date
- 2023/10/12
- Material
-
- Cotton
- Polyester
- Other
- Mixture
-
- COTTON 63%
- Polyester 12%
- Acrylic 25%
- Woven textile
- Width 150cm
- Length 50m
- Weight 330g/㎡
- Small batch orders available
- color/design variation available
- Item
-
- Jackets
- Coats
- Pants/Skirts
- Denim
- Interior
- Sundry items
- Accessories
- Area
- Bichu/Bingo
-
KYC849 D/#7
UNI TEXTILE CO., LTD.
- Number
- KYC849 D/#7
- date
- 2023/08/04
- Material
-
- Cotton
- Polyester
- Mixture
-
- Polyester 75%
- COTTON 25%
- Function
-
- Easy care
- Woven textile
- Width 110cm
- Length 50m
- Weight 179g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Jackets
- Coats
- Dresses
- Pants/Skirts
- Sundry items
- Area
- Banshu
This is an impactful yarn-dyed jacquard material that expresses the popular diamond lattice pattern with long pile cut jacquard. -
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 -
OWE35381
OHARAYASENI CO., LTD.
- Number
- OWE35381
- date
- 2024/04/01
- Material
-
- Linen/Rammie
- Other
- Mixture
-
- Other 54%
- Linen/Rammie 46%
- Woven textile
- Width 110cm
- Length 25m
- Weight 293g/㎡
- Price
- Between 2,001 yen and 3,000 yen
- Stock service available
- Small batch orders available
- Item
-
- Jackets
- Coats
- Shirtings
- Pants/Skirts
- Japanese-style clothing (kimono)
- Other
- Area
- Bichu/Bingo
-
- Enquiry by e-mail
-
- TEL
- 06-6263-8668
-
43896
SUNWELL CO., LTD.
- Number
- 43896
- date
- 2024/06/06
- Material
-
- Polyester
- Mixture
-
- Polyester 100%
- Knitted textile
- Width 140cm
- Length 40m
- Weight 270g/㎡
- Price
- Between 2,001 yen and 3,000 yen
- Stock service available
- Item
-
- Jackets
- Coats
- Dresses
- Pants/Skirts
- Sundry items
- Area
- Koyaguchi
Fake fur -
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
-
KS550-E35
KAIHARA CORPORATION
- Number
- KS550-E35
- date
- 2024/04/02
- Material
-
- Cotton
- Mixture
-
- COTTON 98%
- Polyurethane 2%
- Function
-
- Stretch
- Woven textile
- Length 50m
- Price
- Within 1,000 yen
- Small batch orders available
- Stock service available
- color/design variation available
- Item
-
- Jackets
- Pants/Skirts
- Denim
- Area
- Bichu/Bingo
-
L2525-SG
KURASHIKIZOME
- Sustainable production process
-
2-a Optimized dyeing and finishing
- Sustainable corporate social responsibility
-
3 Sustainable corporate social responsibility
- Number
- L2525-SG
- date
- 2023/10/12
- Material
-
- Linen/Rammie
- Mixture
-
- Linen/Rammie 100%
- Woven textile
- Width 130cm
- Length 23m
- Weight 240g/㎡
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Jackets
- Dresses
- Pants/Skirts
- Sundry items
- Accessories
- Area
- Bichu/Bingo
-
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
- Stock service available
- color/design variation available
- Item
-
- Dresses
- Shirtings
- Area
- Banshu
Stripe series with Indian extra-long cotton -
EXF100-B-ACT
KAIHARA CORPORATION
- Sustainable corporate social responsibility
-
3 Sustainable corporate social responsibility
- Number
- EXF100-B-ACT
- date
- 2023/10/12
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 64%
- Polyester 34%
- Polyurethane 2%
- Function
-
- Stretch
- Woven textile
- Width 112.1cm
- Length 50m
- Weight 389g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Jackets
- Pants/Skirts
- Denim
- Sportswear
- Area
- Bichu/Bingo
-
4H8024
KUWAMURA CO., LTD.
- Number
- 4H8024
- date
- 2024/02/07
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 52%
- Polyester 48%
- Woven textile
- Width 156cm
- Length 60m
- Weight 76g/㎡
- Stock service available
- Item
-
- Dresses
- Shirtings
- Area
- Banshu
-
4H4440
KUWAMURA CO., LTD.
- Number
- 4H4440
- date
- 2023/08/04
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 112cm
- Length 60m
- Weight 100g/㎡
- Stock service available
- Item
-
- Jackets
- Dresses
- Shirtings
- Pants/Skirts
- Area
- Banshu
-
VN2202-2
DUCK TEXTILE CO., LTD.
- Sustainable corporate social responsibility
-
3 Sustainable corporate social responsibility
- Number
- VN2202-2
- date
- 2024/04/01
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 88cm
- Length 25m
- Weight 755g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Pants/Skirts
- Denim
- Interior
- Sundry items
- Accessories
- Area
- Bichu/Bingo
-
RR6617
ROKAL Inc.
- Number
- RR6617
- date
- 2024/04/02
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 144cm
- Length 50m
- Weight 138g/㎡
- Price
- Within 1,000 yen
- Stock service available
- Item
-
- Jackets
- Shirtings
- Area
- Banshu
-
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
-
22488
SUNWELL CO., LTD.
- Number
- 22488
- date
- 2024/04/01
- Material
-
- Cotton
- Linen/Rammie
- Mixture
-
- COTTON 70%
- Linen/Rammie 30%
- Woven textile
- Width 130cm
- Length 50m
- Weight 155g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Jackets
- Shirtings
- Pants/Skirts
- Area
- Banshu
-
- Enquiry by e-mail
-
- TEL
- 03-5772-8914
-
KYC859-W-1
UNI TEXTILE CO., LTD.
- Number
- KYC859-W-1
- date
- 2024/01/12
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 55%
- Polyester 45%
- Function
-
- Stretch
- Easy care
- Woven textile
- Width 144cm
- Length 50m
- Weight 108g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- color/design variation available
- Stock service available
- Item
-
- Jackets
- Dresses
- Shirtings
- Pants/Skirts
- Area
- Banshu
It is a stretch jacquard with a staggered pattern.
It is characterized by a textured surface that uses the difference in shrinkage of the yarn. -
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
-
JP-5051
KUWAMURA CO., LTD.
- Number
- JP-5051
- date
- 2023/08/04
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 110cm
- Length 60m
- Weight 260g/㎡
- Stock service available
- Item
-
- Shirtings
- Pants/Skirts
- Area
- Banshu
-
FY1133KI-1202KM
DUCK TEXTILE CO., LTD.
- Sustainable corporate social responsibility
-
3 Sustainable corporate social responsibility
- Number
- FY1133KI-1202KM
- date
- 2023/10/12
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 63%
- Polyester 12%
- Acrylic 25%
- Woven textile
- Width 150cm
- Length 50m
- Weight 330g/㎡
- Small batch orders available
- color/design variation available
- Item
-
- Jackets
- Coats
- Denim
- Printed fabrics
- Interior
- Sundry items
- Accessories
- Area
- Bichu/Bingo
-
SB16160
SHIBAYA CO., LTD.
- Number
- SB16160
- date
- 2024/06/06
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 153cm
- Length 50m
- Weight 249g/㎡
- Price
- Within 1,000 yen
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Suits
- Jackets
- Coats
- Dresses
- Shirtings
- Pants/Skirts
- Sportswear
- Sundry items
- Accessories
- Area
- Bichu/Bingo
-
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
- color/design variation available
- Stock service available
- Item
-
- Shirtings
- Pants/Skirts
- Other
- Area
- Banshu
-
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
-
RR6615-K
ROKAL Inc.
- Number
- RR6615-K
- date
- 2024/04/02
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 65%
- Polyester 35%
- Woven textile
- Width 148cm
- Length 50m
- Weight 186g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- Stock service available
- color/design variation available
- Item
-
- Jackets
- Coats
- Pants/Skirts
- Area
- Banshu