Type:training mask Name:Training Mask High Altitude Running Mask Key Words:running mask Material:Silicone , Plastic,Polyester, Spandex breathing level:16 Color:Black Size:S M L Logo:Customized Logo Availabled Function:Gym, Running, Cycling, Cardio, Fitness,Sport Workout Resistance Packing:Carry case+ color box Application:Outdoor, Gym Club,Home