Diesel Stretch Cotton Divine Boxer Briefs 5% elastane Machine wash warm, only non chlorine bleach when needed. Tumble dry low, cool iron if needed. Wash dark colors separately. 95% Cotton / 5% Elastane Machine wash warm, only non chlorine bleach when needed. Tumble dry low, cool iron if needed. Wash dark colors separately. Small Waist: 29 - 31", Medium Waist: 31 - 33", Large Waist: 34 - 36", Extra Large Waist: 36 - 38"