On the first day of March, we start the research and development states. As we promised, we will make the 3FREE backpack with you. Here's the first stage, we are selecting the materials, all of these are used on mostly backpack in the market like 1000D Cordura, 500D Cordura, 420D Cordura, 1280D Ballistic nylon, 420D Oxford nylon, Tarpaulin, 210D Nylon twill, 1680D Double line polyester, 600D Polyester, 900D High density polyester and more.
We will test all these materials from water resistance, durable and weight in the next step. Please follow us.