The athletic underwear advertised as "stretchy" was anything but.As my tests showed these underwear do not offer the flexibility needed for a challenging workout. The fabric digs into areas it shouldn`t and leaves unsightly bulges. Perhaps this is NOT an issue for some users, but for men who care about Men's Fashion, these underwear fall short. On the upside, the material is breathable. However, this small positive feature is not enough to overlook the overall disappointment of this product..