SUNVP Men's Swimming Boxer Briefs Comfortable Breathable Board Shorts MATERIAL: Nylon + Spandex FUNCTION:Great for training and swimming for fitness and exercise WASHING METHOD:Machine or hand wash separately in cold water, only non-chlorine bleach when needed, dry flat, do not iron, do not dry clean NOTE: Please check sizing chart before ordering. This is Asia size which is smaller than USA size,For more comfortable please choose one size larger than you usually wear. SIZE - This is our own size chart(please allow 1 to 3cm error because of manual measurement) L:Waist:28.74"-31.10" XL:Waist:31.10"-34.25" XXL:Waist:33.86"-37.01"