79% Recycled Polyester, 21% Elastane. Lining: Breathable, Mesh. Design: Logo, Plain, Reflective Detail. Back Style: Open. Neckline: Scoop. Sleeve-Type: Spaghetti Strap. Fabric Technology: Aeroready, Lightweight. Adjustable Strap. Length: Cropped. Fit: Regular. 4 UK - 6 UK: 32 in. 8 UK - 10 UK: 34.5 in. 12 UK - 14 UK: 37 in. 20 UK - 22 UK: 43 in. 16 UK - 18 UK: 40 in.