Best for: Soft yet supportive, these bamboo jersey briefs are made for everyday comfort. . . The features: These bamboo jersey briefs have a shaped pouch for excellent support. They have flatlock stitching so they won't chafe and they're finished with a soft elasticated waistband with our BAM branding. . . 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.. .. Black. Easy care. 200gsm Single Jersey. 68% Bamboo Viscose, 28% Organic Cotton, 4% Elastane