Womens Training Chest Protector SMALL/MEDIUM, for Boxing, Martial Arts, Muay Thai, MMA Kickboxing, Female self defense Women's Chest Guard. Made of Polyurethane: shock absorbing foam, and very lightweight. Flexible construction that allows comfort, Elastic straps on the shoulders with 3 inches wide elastic velcro strap on the Back. Protects Chest. Now available in 2 sizes: Small/Medium and Large/XL (This listing is for Small/Medium size)