ergowear boxer slk se trunks micro mesh 3d pouch in peach birds 1774 107Every SLK SE Boxer is manufactured using our signature polyester elastane micro mesh fabric a polyester microfiber with tiny holes in the construction to allow for extra breathability Additionally, elastane is blended in to make it adaptable to the body As a result, this fabric combines the three most desirable properties for underwear: Breathability through clever construction, elasticity through elastane and resistance since polyester is one of the