THOR Sentinel Pro Chest Protector. Press-Fit molded and ventilated comfort liner system. Lightweight low-profile front and back panel design. Abundantly placed ventilation ports for maximum cooling. Adjustable elastic closure with ratcheting buckle. Adjustable shoulder straps and adjustable / removable shoulder pads allow rider custom fit and feel. Impact foam positioned at chest and back. Chest protector tested and certified according to European Standard EN 1621-3:2018 Level 1. Back protector tested and certified according to European Standard EN 1621-2:2014 Level 1.