Performance Appearance The XV Flex™ is built to mimic the Extreme Flex™ shoulder pads in every manner, but at a more economical price point. The XV looks like the Extreme Flex™ and features many of the same performance features and benefits. High Impact Foam High Impact, closed cell EVA foam is at the center of the XV Flex™ protection system. Ventilated with 5mm vapor holes, the EVA foam maxes out protection in the XV but also helps circulate air around your body, keeping you cooler and drier. Raised Corrugations Raised corrugations in the design make the pad stronger while 5mm holes in both the arch and throughout the pad aid in circulating air keeping you cooler. Interior Cushioning EVA sheet foam forms the core of protection for the Armor Flex™. Covered on the outside by a breathable fabric for maximum air flow, the EVA foam is a ballistic breathable foam that features 5mm vent holes to maximize air circulation.