Material data base
- Results
-
- Banshu
- Oota
- Bishu
- Cotton
- Woven textile
90Hits
-
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
-
JB24329FT
FINE TEXTILE CO., LTD.
- Number
- JB24329FT
- date
- 2024/06/06
- Material
-
- Cotton
- Nyron
- Other
- Mixture
-
- COTTON 50%
- Acrylic 37%
- Other 10%
- Nylon 3%
- Woven textile
- Width 140cm
- Length 50m
- Weight 250g/㎡
- Price
- Between 2,001 yen and 3,000 yen
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Suits
- Jackets
- Coats
- Shirtings
- Japanese-style clothing (kimono)
- Area
- Bishu
Cool fancy tweed made with Japanese paper -
95169
KUWAMURA CO., LTD.
- Number
- 95169
- date
- 2024/02/07
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 110cm
- Length 60m
- Weight 223g/㎡
- Stock service available
- Item
-
- Jackets
- Shirtings
- Pants/Skirts
- Area
- Banshu
-
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
-
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. -
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
-
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
-
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
-
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
-
3580
KUWAMURA CO., LTD.
- Number
- 3580
- date
- 2023/08/04
- 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
-
CLT354
KUWAMURA CO., LTD.
- Number
- CLT354
- date
- 2023/08/04
- Material
-
- Cotton
- Silk
- Mixture
-
- COTTON 66%
- Silk 34%
- Woven textile
- Width 112cm
- Length 60m
- Weight 129g/㎡
- Price
- Within 1,000 yen
- Small batch orders available
- color/design variation available
- Stock service available
- Item
-
- Dresses
- Shirtings
- Pants/Skirts
- Area
- Banshu
A washer material that uses silk noil for the weft thread. Silk noil is the shortest fiber among silk short fibers, and the raw material is spun into yarn by air spinning, which has a unique texture a -
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
-
14374
SUNWELL CO., LTD.
- Sustainable raw materials
-
1-a Organic materials, biodegradable natural fibers
- Number
- 14374
- date
- 2024/01/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 110cm
- Length 60m
- Weight 189g/㎡
- Price
- Within 1,000 yen
- Stock service available
- Item
-
- Jackets
- Shirtings
- Area
- Banshu
100%Organic Cotton-
- Enquiry by e-mail
-
- TEL
- 06-6233-1321
-
3675
KUWAMURA CO., LTD.
- Number
- 3675
- date
- 2023/08/04
- Material
-
- Cotton
- Polyester
- Other
- Mixture
-
- COTTON 55%
- Other 25%
- Polyester 20%
- Function
-
- Heat-generating/moisture retention
- Woven textile
- Width 114cm
- Length 60m
- Weight 236g/㎡
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Jackets
- Coats
- Shirtings
- Sundry items
- Accessories
- Area
- Banshu
-
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
-
RN9005
KOYAMA CO., LTD.
- Number
- RN9005
- date
- 2023/10/12
- Material
-
- Cotton
- Woolen
- Mixture
-
- COTTON 90%
- Wool 10%
- Woven textile
- Width 110cm
- Length 25m
- Weight 220g/㎡
- color/design variation available
- Stock service available
- Item
-
- Suits
- Jackets
- Coats
- Dresses
- Shirtings
- Pants/Skirts
- Area
- OTHER
This soft twill fabric is made of cotton and wool.
It is processed in small quantities at a dyeing factory in Hamamatsu.
It is characterized by its moderate thickness. -
RMD3408
KUWAMURA CO., LTD.
- Number
- RMD3408
- date
- 2024/02/07
- Material
-
- Cotton
- Silk
- Mixture
-
- COTTON 70%
- Silk 30%
- Woven textile
- Width 112cm
- Length 60m
- Weight 144g/㎡
- Price
- Within 1,000 yen
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Suits
- Jackets
- Dresses
- Shirtings
- Pants/Skirts
- Area
- Banshu
It is a washer material that uses bullet noil for the weft thread. Bullet Noil is made by empty spinning the fallen cotton after removing raw silk and silk from the cocoons, and it has a unique uneven -
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
- Small batch orders available
- Stock service 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. -
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. -
2190
KUWAMURA CO., LTD.
- Number
- 2190
- date
- 2024/02/07
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 112cm
- Length 60m
- Weight 135g/㎡
- Stock service available
- Item
-
- Shirtings
- Area
- Banshu
-
M64T003
NAKADEN KEORI CO., LTD.
- Number
- M64T003
- date
- 2024/06/06
- Material
-
- Cotton
- Woolen
- Mixture
-
- Wool 56%
- COTTON 44%
- Woven textile
- Width 143cm
- Length 25m
- Weight 436g/㎡
- Price
- 3,000 yen or more
- Small batch orders available
- Item
-
- Jackets
- Coats
- Pants/Skirts
- Interior
- Sundry items
- Area
- Enshu
Wool corduroy made from 15.5M (SP160) wool. It was designed with particular attention to the height of the ridges. -
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
-
EY2B409
CLOTH JAPAN
- Number
- EY2B409
- date
- 2023/10/12
- Material
-
- Cotton
- Woolen
- Mixture
-
- COTTON 52%
- Wool 48%
- Woven textile
- Width 140cm
- Length 40m
- color/design variation available
- Item
-
- Jackets
- Coats
- Dresses
- Shirtings
- Area
- Bishu
-
- Enquiry by e-mail
-
- TEL
- 03-5414-2237
-
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
-
SBT-013
KUWAMURA CO., LTD.
- Sustainable raw materials
-
1-a Organic materials, biodegradable natural fibers
- Number
- SBT-013
- date
- 2023/08/04
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 110cm
- Length 60m
- Weight 145g/㎡
- Stock service available
- Item
-
- Shirtings
- 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
-
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 -
3592
KUWAMURA CO., LTD.
- Sustainable raw materials
-
1-a Organic materials, biodegradable natural fibers
- Number
- 3592
- date
- 2024/02/07
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 114cm
- Length 60m
- Weight 143g/㎡
- Price
- Within 1,000 yen
- Stock service available
- color/design variation available
- Item
-
- Dresses
- Shirtings
- Area
- Banshu
-
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
- Stock service available
- color/design variation 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. -
KG1494
KAGEYAMA CO., LTD.
- Number
- KG1494
- date
- 2024/04/02
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 106cm
- Length 50m
- Weight 60g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- Stock service available
- color/design variation available
- Item
-
- Dresses
- Shirtings
- Area
- Banshu
-
KYC849-7
UNI TEXTILE CO., LTD.
- Number
- KYC849-7
- date
- 2024/01/12
- Material
-
- Cotton
- Polyester
- Mixture
-
- Polyester 75%
- COTTON 25%
- Function
-
- Easy care
- Woven textile
- Width 110cm
- Length 50m
- Weight 156g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- Stock service available
- color/design variation available
- Item
-
- Jackets
- Dresses
- Shirtings
- Pants/Skirts
- Area
- Banshu
It is a cut jacquard with a diamond pattern on a twill base.
It is a material that does not wrinkle easily and having a soft texture with a cotton touch. -
K-3001
KAGEYAMA CO., LTD.
- Number
- K-3001
- 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
- Stock service available
- color/design variation available
- Item
-
- Shirtings
- Area
- Banshu
-
2544
FINE TEXTILE CO., LTD.
- Number
- 2544
- date
- 2023/10/12
- Material
-
- Cotton
- Linen/Rammie
- Worsted wool
- Mixture
-
- Wool 55%
- Linen/Rammie 25%
- COTTON 20%
- Woven textile
- Width 138cm
- Length 37m
- Weight 195g/㎡
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Jackets
- Dresses
- Shirtings
- Area
- Bishu
-
- Enquiry by e-mail
-
- TEL
- 058-398-6211
-
76-137
KUNISHIMA CO., LTD.
- Number
- 76-137
- date
- 2023/10/12
- Material
-
- Cotton
- Linen/Rammie
- Worsted wool
- Woolen
- Mixture
-
- Wool 47%
- COTTON 32%
- Linen/Rammie 21%
- Woven textile
- Width 127cm
- Length 25m
- Weight 460g/㎡
- Price
- 3,000 yen or more
- Item
-
- Suits
- Jackets
- Coats
- Pants/Skirts
- Area
- Bishu
-
BD2696
COSMO TEXTILE CO., LTD.
- Number
- BD2696
- date
- 2024/04/01
- Material
-
- Cotton
- Polyester
- Mixture
-
- Polyester 80%
- COTTON 20%
- Function
-
- Water-repellent
- Woven textile
- Width 150cm
- Length 50m
- Price
- Within 1,000 yen
- Stock service available
- Small batch orders available
- color/design variation available
- Item
-
- Shirtings
- Pants/Skirts
- Area
- Bishu
-
RR6629
ROKAL Inc.
- Number
- RR6629
- date
- 2024/04/02
- Material
-
- Cotton
- Linen/Rammie
- Mixture
-
- COTTON 95%
- Linen/Rammie 5%
- Woven textile
- Width 152cm
- Length 50m
- Weight 180g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- Stock service available
- Item
-
- Jackets
- Shirtings
- Pants/Skirts
- Area
- Banshu
-
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
- Stock service available
- color/design variation 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. -
SBT-015
KUWAMURA CO., LTD.
- Number
- SBT-015
- date
- 2023/08/04
- Material
-
- Cotton
- Polyester
- Mixture
-
- COTTON 66%
- Polyester 34%
- Function
-
- Absorbent/quick-drying
- Cool/moisture transmission
- Woven textile
- Width 148cm
- Length 60m
- Weight 108g/㎡
- Stock service available
- Item
-
- Shirtings
- Area
- Banshu
-
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 -
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
-
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
- Stock service available
- color/design variation available
- Item
-
- Shirtings
- Area
- Banshu
-
KKF1768-W
UNI TEXTILE CO., LTD.
- Number
- KKF1768-W
- date
- 2024/01/12
- Material
-
- Cotton
- Nyron
- Mixture
-
- COTTON 72%
- Nylon 28%
- Woven textile
- Width 150cm
- Length 50m
- Weight 71g/㎡
- Price
- Between 1,501 yen and 2,000 yen
- Stock service available
- Item
-
- Jackets
- Dresses
- Shirtings
- Pants/Skirts
- Area
- Bishu
By using Nylon split yarn for the warp, we created a material that has a modest of firmness and light weighted. It can be used for a variety of items with its natural look and vintage-like texture. -
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 -
4H4441
KUWAMURA CO., LTD.
- Number
- 4H4441
- date
- 2024/02/07
- Material
-
- Cotton
- Linen/Rammie
- Mixture
-
- COTTON 94%
- Linen/Rammie 6%
- Woven textile
- Width 114cm
- Length 60m
- Weight 105g/㎡
- Stock service available
- Item
-
- Dresses
- Shirtings
- Area
- Banshu
-
P59050
NAKADEN KEORI CO., LTD.
- Number
- P59050
- date
- 2024/06/06
- Material
-
- Cotton
- Worsted wool
- Other
- Mixture
-
- Wool 58%
- Mohair 21%
- COTTON 17%
- Nylon 4%
- Function
-
- Stretch
- Woven textile
- Width 152cm
- Length 20m
- Weight 484g/㎡
- Price
- 3,000 yen or more
- Small batch orders available
- Item
-
- Jackets
- Coats
- Interior
- Sundry items
- Area
- Bishu
Fancy tweed made with extremely thick loop yarn, which is difficult to use on a rapier loom. With our loom, you can weave without any problems. -
KGM1331
KAWAGOSHIMASA CO., LTD.
- Number
- KGM1331
- date
- 2024/02/07
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 116cm
- Length 50m
- Weight 180g/㎡
- Price
- Between 1,001 yen and 1,500 yen
- Stock service available
- color/design variation available
- Item
-
- Suits
- Jackets
- Coats
- Shirtings
- Pants/Skirts
- Accessories
- Area
- Banshu
Sulfide dyeing yarn
Color fading when washed
-
5-1373-1
HOKKOH CO., LTD.
- Number
- 5-1373-1
- date
- 2024/01/12
- Material
-
- Cotton
- Mixture
-
- COTTON 100%
- Woven textile
- Width 112cm
- Length 50m
- Weight 310g/㎡
- Stock service available
- Item
-
- Suits
- Jackets
- Coats
- Dresses
- Shirtings
- Pants/Skirts
- Denim
- Other
- Area
- Banshu
Using Rope dyed Indigo yarn, High density, Palaka Check -
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