AutumnFall Men's Mesh Series C High Elasticity Boxer Briefs 100% Nylon Material:Nylon Size: S(63cm~72cm/24.8"~28.3")/M(72cm~83cm/28.3"~32.7")/L(83cm~92.4cm/32.7"~36.4") Two approximate design style, one style was designed with opaque modal for the front rise, other area was made with semi opaque mesh, has good air permeability, high elasticity and looks very sexy Another style's inner thighs was designed with semi opaque mesh, we know there is very hot. It will good for evaporate the heat. Other area was made with opaque modal. It also has good breathable, high elasticity and implicit sexy More sexy and breathable is from semi opaque of mesh design