David Archy Men's Luxury Seamless Super Thin Light Trunk 80% Polyamide from Italy and 20% Elastane This fabric has very strong elasticity, you may feel tight, so please order 1 size up for a better fitting Pilling resistant and UV protection Fabric imported from Italy, super thin and light, just feather weight Breathable extremely strong Seamless tech, no any rubbing Machine washable in cold water