Socks by River Island - Made from a cotton blend. - Ribbed design to the main. - Contrast frilled trim to cuff. - Reinforced toes. ABOUT RIVER ISLAND: River Island brings us an eclectic collection of fashion forward styles. Look out for vibrantly printed party dresses, feminine detailing, statement jackets and a covetable range of denim including skinny cut jeans and cute denim shorts, which sits alongside their directional footwear and swimwear range. Main: 65% Cotton, 21% Polyamide, 12% Polyester, 2% Elastane.