SPRI ES502R Xertube Resistance Band with Door Attachment and Exercise Charts (Blue, Heavy)

SPRI Xertubes provide an easily portable, highly versatile way to add resistance training to your workout. Constructed of durable rubber with secure plastic and webbing handles, the Xertubes are suitable for a variety of toning exercises, body types, and fitness levels. Color-coded blue, this Xertube is recommended by SPRI for the upper body workouts of advanced men and women. It offers heavy resistance for the muscle groups in the back, arms, shoulders, and trunk. SPRI also includes a door strap that lets you safely secure the tube to a door for additional target activities. The kit includes two illustrated charts of exercises, including bicep curls, shoulder presses, and back extensions. Designed for light and speedy mobility, the strap can be rolled up to stash in a gym bag, suitcase, or overnight grip. --Emily Bedard

SPRI ES503R Xertube Resistance Band with Door Attachment and Exercise Charts (Purple, Very Heavy)

Looking for a great way to tone your entire body? Turn to the purple Xertube resistance band, which creates just the right amount of tension for your home workout. Made of the highest quality rubber, Xertube bands are designed to offer progressive resistance, which increases the resistance level as your body exerts additional force. That means the harder and faster you move, the more resistance the tubes provide, helping you isolate targeted muscle groups more effectively. Plus, you can use them anywhere, anytime. All you need is a little space to begin a safe, effective total body conditioning program. This purple Xertube offers extra-heavy resistance compared to other Xertubes--with a weight equivalent of approximately 20 pounds--and comes with a door attachment and exercise chart. It's intended for extremely fit men and women.

SPRI ES500R Xertube Resistance Band with Door Attachment and Exercise Charts (Green, Light)

SPRI Xertubes provide an easily portable, highly versatile way to add resistance training to your workout. Constructed of durable rubber with secure plastic and webbing handles, the Xertubes are suitable for a variety of toning exercises, body types, and fitness levels. Color-coded green, this Xertube is recommended by SPRI for the upper body workouts of beginner or moderately fit men and women. It offers light resistance for the muscle groups in the back, arms, shoulders, and trunk. SPRI also includes a strap that lets you safely secure the tube to a door for additional target activities. The kit comes with two illustrated charts of exercises, including bicep curls, shoulder presses, and back extensions. Designed for light and speedy mobility, the strap can be rolled up to stash in a gym bag, suitcase, or overnight grip. --Emily Bedard