Bonds has added a little something extra into there new trunks This - Range features a smart temperature technology that evaporate sweat fast - As it responds to your body heat. - Key features Supportive lined pouch engineered to reduce bounce Super flat seams and soft elastic binds eliminate rideup Heat responsive technology Helps regulate body temperature Evaporates sweat fast - Materials Main cotton/elastane Waistband nylon/polyestyerne/elastane excluding trims - Care instructions - Each garment label will provide the specific material and care - Instructions for your guidance so please make sure you check these. - Designed in australia - Made in china - Style number mxeja