Sparthos Training Mask - Simulate High Altitudes - for Gym, Cardio, Fitness, Running, Endurance and HIIT Training [16 Breathing Levels] Military Camo bee04 Our lace locks feature a

Our lace locks feature a high-quality Duraflex design with stainless springs for holding the iBungee laces securely in place and preventing them from slipping

Just brainstorm

flexible and high quality materials have been carefully selected and used for you

Available in 24

Sparthos Training Mask - Simulate High Altitudes - for Gym, Cardio, Fitness, Running, Endurance and HIIT Training [16 Breathing Levels] Military Camo bee04 Our lace locks feature aSparthos Training Mask Simulate High Altitudes for Gym, Cardio, Fitness, Running, Endurance and HIIT Training [16 Breathing Levels] Push Past Your Physical Limits With SPARTHOS Have you ever noticed how calm and relaxed the best endurance athletes look when theyre pacing themselves through a race? The ease with which they run 5: 00 min mile or cycle above 30 mph? Obviously they put in a ton of training time, which you probably cant replicate, but they