Black Denim Straight Leg Jeans
Tu’s plain black mid-rise straight jeans in short, regular and long legs, rated 4.6 out of 5 from more than 600 reviews.
Stock photo£16at Tu at Sainsbury's, October 2026
From the product page
- Fabric
- 73% cotton, 22% polyester, 3% viscose, 2% elastane
- Sizes
- 6 to 24, short, regular and long
- Fit
- mid rise, straight leg
- Care
- machine washable
These are the kind of jeans Tu does best: mid rise, straight leg, five pockets, zip fly, in a cotton-rich denim with a little stretch (73% cotton, 22% polyester, 3% viscose, 2% elastane). Sizes run from 6 to 24 in short, regular and long lengths, so most heights are covered. When we looked they averaged 4.59 out of 5 from 635 reviews, and the dark denim version had more than 1,300.
Sorted lowest first, the reviews tell one story: sizing drifts between batches. Several long-time buyers found a new pair inches smaller or larger than the same labelled size, and one said the leg was tapered rather than straight. Others called the fabric thin and over-stretchy. Order two sizes if you are unsure.
Good for you if
- You want plain black jeans for under £20
- You need a short or long leg
Not for you if
- You want rigid, heavyweight denim








