In the heat of battle, roost deflection is the name of the game, and Thor's new Sentinel LTD Roost Guard is all about Player One. This new low-profile and lightweight design features plentiful ventilation for maximum airflow, a molded comfort liner, and dynamic adjustability at the shoulders and waistline for a secure, tailored fit. Designed to be worn either under or over the jersey, the Sentinel LTD looks just as good as it performs. Lightweight low-profile front panel. Press-Fit molded and ventilated comfort liner system. Abundantly placed ventilation ports for maximum cooling. Adjustable elastic closure with ratcheting buckle. Adjustable shoulder straps and adjustable / removable shoulder pads allows the rider a custom fit and feel. Fits most riders 120 - 250 pounds (54 - 113 kg).