Features: 1)Bio-mechanical support provides firm structure for feet comfort 2) Nylon pad to reinforced arch support 3) Upgraded breathable, anti-sweat and antibacterial top layer ensures feet fresh and comfort 4) High quality Double density EVA materials & advanced Technology for fixed foot shape 5) Free size DIY, can cut the insoles according the real foot size 6) Light weight Size: S: EU 35~40 L: EU 40~46 Key function and benefits: Flat feet: Our firm and medical grade Orthotic Inserts are designed to gently alleviate many common foot pain, arch pain, heel pain, ankle pain, Plantar Fasciitis and Over Pronation, etc. Premium materials: Durable EVA foam base and multi-layer cushion provide long-lasting support and comfort while walking, running and hiking. The fabric also helps keep your feet cool by sucking up all the sweat and moisture produced by your feet. Functional inserts: ARCH SUPPORT distribute and minimize pressure in the foot. Deep heel cradle keep the foot bone vertical to enhance stability. Built-in silicon cushioned heel support is excellent for shock absorption and pain relief. Fit most footwear: Fit for many types shoes of men and women, such as running shoes, work boots, sneakers, street shoes, slipper, flats, and so on. Retail Package, Fast Shipping Methods