THE DropTemp® Cooling Hydro Liner is a swim boxer brief designed to be worn under unlined (non-SAXX) swim shorts. This quick-drying model incorporates the BallPark Pouch® for active comfort and optimal support. DropTemp® Cooling Technology – keeps you cool all day BallPark Pouch® – secure maintenance Flat Out Seams® – eliminate irritations Three-D Fit® – 9-panel construction for a perfect fit Chemical-free cooling Ultra-light micro-mesh Breathable and odor-resistant Resistant to discoloration from chlorine and salt water Rapid drying and drainage Discreet pocket Composition : 87% polyester, 13% elastane. *Delivery times for Saxx products may vary between 5 and 10 working days.