Portable Resistance Trainer

By OYO Fitness

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This total body gym is powered by SpiraFlex technology, which astronauts use to stay in shape on the space station—but it is just as effective for the rest of us. The lightweight, portable design helps to strengthen and tone, and has a fluid motion that is more gentle on joints than free weights. New to resistance training? Check out the fitness guide and DVD to for workouts and training tips.

  • Materials: Plastic, steel, and rubber
  • Care: Clean with damp cloth only. Harsh chemicals and detergents may discolor or damage the device
  • Includes DoubleFlex trainer, three 5 lb. FlexPack resistance weight attachments, workout DVD, two leg/door attachments, and 50-page workout/user guide
  • Uses lightweight, FlexPack resistance band weights
  • DoubleFlex movement sculpts both sides of muscle groups
  • Can be used with 5, 10, and 15 lbs. of resistance
  • Easy to use, snap on design
  • Please note: Do not allow children to handle or utilize the device. The DoubleFlex contains small parts that may be a choking hazard. Recommended only for those 14 and older
  • Made in Taiwan
  • Dimensions: 23" x 6" x 2.5"
  • Weight: 3.5 lbs.

5 Reviews (4 out of 5 Grommets)

Sorted by Rating

Great for travel!


Love this! Easy to use and perfect for travel!


Great workout device


I love this! It's great for those that have limited space, time and money. Once you get the hang of it, it's awesome.




WOW! what a work out!!! great tool for toning my arms, abs, upper back, shoulders, tummy, legs....you get the picture....GREAT TOOL. Thanksbr /> Thanks OYO FitnessMore > < Less


Just OK


It's just OK. It's definitely not as fluid as they describe it. I would never pay $100 for it if I saw it in person first. I think somewhere about $40-50 tops is the most I feel it's worth.More > < Less


not so good


Very difficult to put together, don't see much difference from suzzanne sommers thigh master!!! I'm sending it back

5 Item(s)

All of the workout with none of the weights.

About OYO Fitness

Strengthen & Tone

The DoubleFlex total body gym is an all-in-one strengthening and toning device that works muscles like free weights do, but with less stress on joints—and with less bulk. The slim design is lightweight and portable, so it’s a great way to squeeze in a workout while you’re traveling or if you can’t get to the gym. An instructional DVD and fitness guide helps you get started with tips and routines, too.

The resistance comes from SpiraFlex band technology created by Paul Francis, the inventor of the Bowflex. He scaled down (and lightened up) the system for NASA astronauts to stay in shape while they’re on the space station. It proved to be so effective that he made the DoubleFlex portable trainer for the rest of us here on Earth.

Whether you’re just beginning or looking to mix up your usual workout routine, Paul’s innovative approach will give you the right amount of resistance.