Cotton On Staple Rib Scoop Neck Long Sleeve Top, Size Small. New w/tags. Up your basics game with the Staple Long Sleeve Top. The soft, ribbed fabric, scoop neck, long sleeves and range of colours go back perfectly with all your favourite denim. Tuck it in or wear it out, layer up or wear it solo, so many choices. 95% Viscose (Viscose Rayon), 5% Elastane.