skims updates your winter wardrobe with pieces that are functional yet sport-inspired for a luxe twist. This fitted jacket is made from a midweight polar fleece that is not only super soft, but also provides exceptional warmth and comfort. uk size conversion: xxs = uk 0, xs = uk 2-6, S = uk 8-10, M = uk 12-14, L = uk 16-18, xl = 18-20, 2X = uk 20-22, 3X = uk 24-26, 4X = uk 28-30