Training Mask 2.0 Blackout

Training Mask 2.0 Blackout, Medium: Improves stamina and endurance Increases capacity for high-intensity exercise Improves breathing mechanics Training mask sleeves simulate high altitude to increase respiratory resistance Kit includes six snap-on air resistance caps, one silicone mask, manual, one neoprene sleeve and flux valve plungers Sleek Blackout design Other colors and sizes available (sold separately)