The Bauer Official?s Elbow pads feature low density foams with an injected PE insert for great protection. The bicep guard is constructed with MD foams and the forearm guard is also constructed with MD foams. The interior donut foam helps hold the elbow securely in place along with the 2-strap system with integrated sleeve lock. The liner in these elbow pads features 37.5® Technology to help turn sweat into energy.