Lose the Weights
Keep the Resistance
SpiraFlex® was invented for NASA as the “Mission Critical” strength training technology to keep astronauts fit and build muscle in zero gravity on the International Space Station. A NASA study showed SpiraFlex increased lean muscle as much as free-weights.
SpiraFlex also powers the Bowflex® Revolution home gym under license.
DOUBLEFLEX® Total Body Gym
FITNESS THAT FITS YOUR LIFESTYLE
Perfect for home, office, and travel. Work out with your DoubleFlex anywhere, anytime.
Build A Balanced Body
Patented SpiraFlex technology used by NASA astronauts on International Space Station.
Folds up & weighs only 2 lbs. Snap on SpiraFlex FlexPacks to increase resistance in 5 lb. increments.
DoubleFlex movements sculpt both sides of muscle groups, building a balanced body in half the time!