Step your Underwear game up, these UA Boxer are made from a recycled polyester material treated with a non-biocidal and metal free Odor control technology. Designed with zero distraction fit these Boxers feature a performance waistband and 4-way stretch construction. Functional, comfortable and breathable features include mesh zones in the pouch and gusset, articulated fly, lay flat chafe-free seam. No side or back seams gives this product ultimate comfort. 100% Cotton.