Have you been scrolling on social media recently? If you have, you're bound to have come across lululemon's aptly named Define jacket. Why? It's gone viral for its figure-accentuating abilities. Crafted from a woven fabric imbued with stretch, it allows limitless movement whilst simultaneously creating a fitted, body-hugging silhouette that creates a defined, hourglass outline – you know, the one the entire internet's been raving about. Lululemon stretch-woven jacket81% nylon, 19% elastane; bodylining 89% polyester, 11% elastaneZip fasteningSlim fit, high neck, long sleeves, thumbholes at sleeve hems, zip pockets at front, panelled, brand print at back, soft jersey texture, branded hardwareMachine wash coldTrue to sizeModel is 5ft 10in/1.78m and wears a size UK 8Lightweight, stretchy. Colour: black