1. Material: PU bending ring, nylon lycra, mercerized velvet 2. Applicable season: all seasons 3. Applicable gender: both male and female 4. Applicable scene: cycling 5. Function: anti-torsion, anti-fatigue 6. Features: zipper fixation, firm and safe, effectively reduce the damage to the spine, enhance head support, reduce the fatigue of the cervical spine during riding, and be comfortable to wear 7. Weight: about 280 grams
