Get Your Sweat On For Women & Men Includes Sweet Sweat Sample & Mesh Bag Neoprene: 3.5-4.0 mm Neo-Sweat Technology Made with anti-slip, moisture lock, Neo-Sweat Technology (NST) providing superior heat insulation during exercise. Sweet Sweat Waist Trimmer is contoured to fit comfortably around your waist during exercise, while allowing enough flexibility for core and high interval training. Contoured & Flexible - For Comfortable Workouts Textured Grid Interior - Repels Moisture Premium Grade - Latex-Free Neoprene Reinforced - Trim & Lining Double Velcro - For Extra Support Made With: Neo-Sweat Technology