New Arrivals from £12 at size?
Up to 45% off adidas in the size? Sale
Up to 50% off Nike in the size? Sale
Up to 50% off Converse in the size? Sale
Up to 55% off Vans in the size? Sale
Up to 50% off Mens Footwear in the size? Sale
Up to 50% off Womens Footwear in the size? Sale
Up to 50% off Mens Clothing in the size? Sale
Up to 50% off PUMA in the size? Sale
Up to 50% off New Balance in the size? Sale
Up to 50% off in the size? Sale
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About the Brand
size? is a British streetwear and trainer retailer, part of the JD Sports Fashion plc group, that launched in 2000 with a focus on curated footwear and limited-run drops. The brand operates over 20 shops across the UK alongside stores in several European markets, with a full e-commerce platform at www.size.co.uk. It sits firmly in the premium-athleisure space, positioning itself between high-street sportswear chains and boutique sneaker stores.
The product range spans men’s and women’s footwear, clothing, and accessories from major brands including adidas, Nike, Puma, Converse, New Balance, The North Face, Vans, Fred Perry, Reebok, Dr Martens, Clarks, and Fila. Own-label collections sit alongside these names. Clothing covers jackets, knitwear, jeans, and shorts, while accessories include bags, headwear, and socks. Prices vary — new arrivals start from as little as £12, though premium releases and collaborations command considerably more.
Several features help stretch your budget further. The size? app and its companion Launches app unlock early sale access, birthday rewards, and enhanced prize-draw entries. Students verify through UNiDAYS for 15% off full-price orders. Klarna’s Pay Later option lets you delay payment for up to 30 days at no extra cost, and Click & Collect is available at over 650 UK locations for just £1.
With sale discounts reaching up to 55% off brands like Vans and Nike, plus regular newsletter and seasonal offers, the deals below are well worth bookmarking for your next purchase.
How to use
Shopping Guide
When’s the best time to shop at size?
size? runs sales for most of the year, but the deepest discounts cluster around Black Friday, Boxing Day, and end-of-season clearances, with 20–45% off footwear and clothing. December is historically the peak savings month, combining festive sales with the highest number of active promo codes. Brand-specific sale sections are worth checking individually — Vans has reached up to 55% off, while Nike and New Balance regularly hit 50%.
Can I combine discounts at size?
Stacking is possible, but with caveats. The newsletter sign-up gives 10% off your first order; the student discount via UNiDAYS offers 15% off full-price items. These two won’t combine with each other, but a student discount might work on already-reduced sale prices — worth testing at checkout. App members get early sale access, which means you can grab reduced stock before it’s picked over. Activate your student verification first, then shop during a sale window.
Is the size? app worth downloading?
Both free apps are worth having if you shop here with any regularity. The main size? app provides early sale access, birthday rewards, and VIP membership perks including anniversary treats. The size? Launches app takes a different angle, focusing on prize draws with extra entries and achievement tokens that boost your winning chances. Between the two, you’re getting more engagement perks than most trainer retailers offer.
What should I watch out for with size? codes?
Read the terms before committing to a code. Some require a minimum spend; others are restricted to specific brands or product categories. The student discount doesn’t cover every item — premium releases and collaboration exclusions are common. First-order codes won’t work on repeat purchases, so use them on a larger basket to maximise the saving. And always check the expiry date: size? codes tend to have short validity windows.