Material: NYLON
Brand Name: Friorange
Size: M
color: Black
Material: pvc, Nylon, silicone
use 1: Athletics Mask
use 2: Workout Mask
use 3: Cycling Mask
use 4: Boxing Mask
Suitable gender: men and women
Function 1: oxygen resistance training, dustproof, haze proof
Function 2: fitness training, challenge the limit of human body