High-Density 8-Link Foam Padding – Cushions direct impact to the kneecaps, providing essential protection for mountain biking, BMX, skating, and more Exterior Kevlar Knee Cover – Delivers maximum abrasion and tear resistance on rough terrain, protecting against scrapes, slides, and harsh surfaces Targeted Side Impact Protection – Six padded pockets along the sides of the knee shield key impact zones without restricting movement; contoured body design ensures a secure, comfortable fit Breathable & Sweat-Wicking Interior – Perforated Neoprene body enhances airflow while the soft terry cloth lining absorbs moisture for lasting comfort Multiple Sizes for a Custom Fit: Available in Small (32-36cm), Medium (36-40cm), and Large (40-44cm); adjustable Velcro straps offer a secure, stay-put fit