1Anti-slip design, not tight, and the beam mouth uses elastic fiber and precision suture technology. 2Adopts precision vertical knit spiral three-dimensional weaving process, which has a fine and thick feel, good toughness, stretch and recovery performance. 3High-quality zipper, exquisite workmanship, reliable quality, easy to put on and take off. 4Comfortable design is great for long trips and helps reduce swelling and stasis. 52 different colors and 3 different sizes for you to choose, meet your different needs.