G-Form Pro-X4 Shirt Extra Protection Protection is great when you're riding the most demanding trails. With extra padding on your shoulders and sides, you'll be able to ride with confidence. The G-Form Pro-X4 Shirt features Smart Flex flexible pads that harden upon impact to absorb force and then immediately return to a flexible state. The fabric on the front and back body panels offers 4-way stretch functionality and enhanced mobility. Features Slim-fit base layer designed for comfort and performance Inner gripper at the body hem helps keep the shirt in place while you're riding Smart Flex padding that hardens upon impact to absorb force and then returns to a flexible state Breathable compression with 4-way stretchability Machine washable so you can keep it clean Sizing Size Small Medium Large Extra Large Chest (in)32 - 36"36 - 40"40 - 45"45 - 50"Chest (cm)81 - 91. 5cm91. 5 - 101. 5cm101. 5 - 114cm114 - 127cm | G-Form | Pro-X4 Shirt Men's