All underwear are excluded from our general returns policy. Any underwear returned to us will be discarded and no refunds or exchanges will be issued. The Greenyarn Nanotechnology Smart Briefs are made with Eco-fabric in a seamless construction. It contains 90% Eco-fabric, 10% Lycra. Eco-fabric is cloth fabric made from nano-particles of bamboo-charcoal. Eco-fabric's bamboo-carbon nano-particles comes from 4-5 years old Taiwanese Moso Bamboo (Phyllostachys heterocycla pubescens) that is grown naturally in the Jhushan, Taiwan (bamboo mountain). These smart underwear are deodorizing, antibacterial, do not generate static, promote blood circulation and metabolism and wick moisture. As the nano-particles are embedded in the material, the benefits from this underwear will not diminish even after repeated washes. These pants are great for travel, hiking and sports. Designed by runners, customers, and technical designers from various brands to provide basic looks and functional needs.
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