Even the hottest day can be a great riding day, but you need the right gear!The 4.5 X-Flow jacket is super ventilated, has panels of X-Flow mesh plus removable arms for ultimate airflow.It is equipped with an internal hydration pocket with suspension system that prevents a bladder sitting too low, it even has a water-resistant chest pocket for important items.For durability, an abrasion and cut resistant brush guard protective film is used to reinforce the elbow constructionThe tailored waist-length fit is designed to work with or without body armor, and the collar can accommodate a Leatt neck brace if worn.If you need something that is not so vented, you can check out the 4.5 Lite or the heavy duty 5.5 Enduro, or the waterproof 4.5 Hydradri jackets