American Standard Size: The long leg mens underwear size Small=30"-32",Medium=32.5" - 34.5",Large=35" - 37",X-Large=37.5"- 39.5",XX-Large=40" - 42" Elastic Waistband: The mens workout underwear stretchable waistband fit your body; Provide you comfortable protection when exercising; Mens sports underwear double seem stitched make it stable and durable Tagless: Anti chafing underwear men tagfree; Reducing friction and irritation; Protect your skin; tagless boxer briefs for mens tag-free waistline for comfort No Ridding Up: The 9 Inch long leg boxer briefs for men pack of 3 no riding up; No bunching; Performance underwear for men flat smooth double stitched seam make it very durable and comfortable 3D-Fly: The boxer briefs breathable underwear for men feature 3D pouch with a U-shape convex design; Enough room for your privacy; Dry fit underwear for men mesh fabric in groin keep you dry and cool