The new FLEXAIR elbow pads from Racer are the result of 2 years of testing and research. Designed around a mesh and lycra envelope, they have a high absorption capacity polyurethane gel pad specially developed by Racer's research department. To keep them in place, they have non-slip silicone strips. The FLEXAIR have been tested and approved by the Team Racer pro riders in BMX and Enduro. .arm-size-cm { width: 100%; max-width: 500px; border-collapse: collapse; font-family: Arial, sans-serif; margin-top: 1em; } .arm-size-cm th, .arm-size-cm td { border: 1px solid #ccc; padding: 10px 12px; text-align: center; } .arm-size-cm th { background-color: #f5f5f5; } .arm-size-cm td:first-child { text-align: left; font-weight: bold; } Size Bicep Circumference (cm) Forearm Circumference (cm) Small 24 - 26 cm 21 - 23 cm Medium 27 - 29 cm 24 - 26 cm Large 30 - 32 cm 27 - 29 cm Extra Large 33 - 36 cm 30 - 33 cm