valves
elevation training mask 2.0 resistance caps and valves pink
ul li training masks resistance caps allow you to increase resistance as you build your stamina and strength li li snap on snap off caps allow you to adjust the resistance on the go . pump new life into old routines and make fatigue and training plateaus a thing of the past li li durable washable neoprene conforms to your face to create an air tight seal . various colors and styles available li li strengthen your diaphragm by adjusting training mask 2.0 s resistance valves to simulate different altitudes . 12000 feet too intense start at 3000 feet and work your way up li li sells in packs of 7 strong please note the training mask is sold separately strong li ul