Best for: Soft, breathable and stretchy with a longer leg made for working out.. . The features: These fitted sports trunks have a longer fitted leg so they won't ride up. With a supportive front pouch with fly and a softly elasticated BAM waistband. We've used flatlock stitching so they won't chafe.. . Our fabric: Our Classic Jersey is a supremely soft, smooth and breathable blend of bamboo viscose and organic cotton. We've added a little stretch for comfort and ease of movement.. .. Storm Navy. Easy care. 200gsm Single Jersey. 68% Bamboo Viscose, 28% Organic Cotton, 4% Elastane