Not made for sliding ==> The product is made out of nylon and spandex that feels comfortable. If these Arm Sleeves are used to slide like for example in sports like volleyball it will get damaged. This product is made for impact only. Comfort fit and super leightweight ==> The fabric of the McDavid Arm Sleeve consists hDc-moisture management technology that keeps the skin cool and dry. This product is made with needle flat seam that feels nice and reduces possible irritation. MACHINE WASHABLE. Ergonomical fit thanks to Hex technology ==> The McDavid HEX technology consists out of small hexagonal foam pieces. These pieces move independent and freely with the body. The 9 mm HEX padding of the 6500 Arm Sleeve does not affect the movement of the arm. For everyone looking for protection against elbow impact en injuries during sports ==> Features the 9mm McDavid HEX padding made out of closed cell foam hexagons, which do not absorb water and provide an advanced shock absorption. Extended length for better fit as well as added protection against cuts and scratches.