ToughBuilt GelFit Professional Knee Pads - SnapShell Compatible PREMIUM GEL CUSHION -- Comfortable GelFit gel cushion and foam design EXTREMELY DURABLE -- Abrasion-resistant 1680D fabric - Built to Last. ALL DAY COMFORT -- Pro EVA elastic leg straps comfortably hold their place without cutting off circulation. SUPERIOR DESIGN -- High side wall greatly reduce twisting off of the knee. Protective Knee Pads with Anti-slip. GAME CHANGER -- ToughBuilt SnapShells easily snap on and interchange making the perfect kneepad for every job (High quality hollow snaps) ; SnapShells not included with purchase Comfortable GelFit gel and foam design Ergonomically shaped to embrace the knee and upper shin Rugged materials and construction Abrasion-resistant 1680D fabric Maximizes pressure distribution for all-day comfort High side wall greatly reduce twisting off of the knee EVA elastic leg straps comfortably hold their place without cutting off circulation. ToughBuilt SnapShells easily snap on and interchange making the perfect kneepad for every job High quality hollow snaps