Bonds - Bonds X-Temp Mens underwear range featuring smart temperature technology that responds to heat to evaporate sweat fast. Try our Mens X-Temp Trunk for x-treme comfort and the ultimate everyday fit. X-Temp mens trunks with dual action cooling to keep you fresh Supportive lined pouch engineered to reduce bounce Super flat seams and soft elastic binds eliminate ride-upStretchy wide waistband with BONDS brandingMain: Cotton / Elastane; Waist Elastic: Nylon / Polyestyerne / Elastane (Excluding Trims).