Obviously Men's Retro Low Rise Brief Gentle wash in cold water, Do not use Bleach, Tumble dry low, Cool iron if necessary, Do not dry clean 90% Modal / 10% Lycra Gentle wash in cold water, Do not use Bleach, Tumble dry low, Cool iron if necessary, Do not dry clean Small Waist: 28-30", Medium Waist: 32-34", Large Waist: 36-38", Extra Large Waist: 40-42"