Features - Color: Black. - Material: Mesh Fabric EVA TPR Stainless Steel Spring. - Size L (40-46 Yard): 30 cm(Length); 10cm (Width); 3.5cm (Height); 0.45cm(Thickness of Front Foot) ; 2cm(Thickness of Heel). - Size S (35-39 Yard): 26.8 cm(Length); 8.8cm (Width); 3.5cm (Height); 0.45cm(Thickness of Front Foot) ; 2cm(Thickness of Heel). - Orthotic insoles constructed from a light weight yet durable EVA which is known for its absorbent properties. - Arch supporting Contours and pad in heel. Suitable for normal feet, high arch feet, flat arch feet. - topping allowing limited friction with the foot, improving overall foot comfort. - The absorbing heel and front pads protect and give maximum comfort against foot pain, heel pain. - These insoles also correct over pronation and gently and naturally re-position the foot into natural alignment. - The fluid stoma of open granule, can fully breathable fast absorb sweat to discharge moisture easily take away moisture, keep the inside of the shoe dry and cool. - Warm Tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand