Feature 1. Used LYCRA functional fabric,with Teflon water repellent function.Make more health and comfortable. 2. Use International brand bi-directional YKK zipper,sealing well,with bionic tail design,zip up and down smooth and comfortable.(about YKK:The YKK Group established the management principle ¡°YKK Seeks Corporate Value of Higher Significance¡± under the corporate philosophy ¡°Cycle of Goodness.¡± The YKK Group is trusted worldwide for their impeccable production standards and thorough quality control processes for slide fasteners, hook and loop fasteners, webbing tapes and plastic hardware.) 3. Knee venting system,Redundant quantity of heat in the process of rapid spread of sports. 4. Anti-ultraviolet radiation ,protect the body from harm of ultraviolet radiation. 5. Asymmetric Design,Fashion Appearance Beautiful. 6. Have antifouling, anti-oil, air, and moisture permeable features. 7. Used for hiking, camping and wearing in urban leisure environment. 8. Design in multi-pocketed,more convenient items classified depositing,doing sporting with no troubles. Why choose Onepolar Onepolar-born for adventure As a company established in 1994, Onepolar has become a well-known professional outdoor sports gear brand and the sole gear provider of the mountaineering team in the past decade. Onepolar strives to surpass the boundaries of innovation by keeping abreast of the latest technology and using the finest materials. Our aim is to create the best possible professional exploration apparel, footwear, backpacks, equipment and accessories designed for enthusiasts who love the thrill of adventure.