Nitric Boost XL second one is pretty one-of-a-kind. Attach legs straps on your ankles and connect them to Nitric Boost XL cable. Lie to your back at Nitric Boost XL ground and put anxiety on Nitric Boost XL cable together with your legs straight. Bring your knees on your chest and slowly return to Nitric Boost XL begin keeping anxiety on Nitric Boost XL cable always. Do as many as you can for three units.
