1 anti-microbial and odor-free. 2.Massaging insole makes your foot comfortable, custom cushioning with every step. 3 breathable & absorb sweat 4 compression and cushioning, shock absorption. 5 comfortable, high elasticity 6.Environmental protection, low-carbon, made of mdi foam, recycle pu foam 7 factory direct price foam jinsole, 8.Good quality, suitable for long-term uses. 9.100% recycle materials, non-toxic , environment friendly. 10.Excellent ventilation and comfort. Foam insole. 11.Perfect used of all the shoe. Non-breathable is a common existing problem in most ordinary insoles, and it leads mugginess , moisture, and odor .All these problems bring on some unnecessary trouble to modern people , we adopted a new generation insoles materials ---hi-poly, mdi foam, and memory foam .Insoles made of these kinds of materials are with good breath , passing off moisture , skid proof wearable and comfortable , they could relaxe and provide your feet a fresh breath. 500 pairs in on carton