Onboard Fitness Store

Create just the right amount of resistance with the ideal workout tool that you can use anywhere, anytime, in just minutes a day! All you need is a little space to begin a safe, effective total body conditioning program.

The patented Xertube offers progressive resistance levels for multiple uses and fitness levels. Allows for isolation of targeted muscle groups and full range of motion exercise.

Same features and high quality construction as the SPRI Original Xertube. Specifically designed with a 20-inch protective rubber sleeve to protect the Xertube from unwanted wear and tear when wrapping around anchor-point surfaces.

Similar to original Xertube with Sleeve but has deluxe easy grip padded handles for extra comfort. Specifically designed with a 20-inch protective rubber sleeve to protect the Xertube from unwanted wear and tear when wrapping around anchor-point surfaces.

Twice the tubing, for twice the resistance exercise effectiveness.

The Double Xertube is specifically designed to offer optimal resistance exercise load to both the joints and muscles. The dual-anchor point exercise stances provide unique bi-angular tubing resistance for upper body and rotator cuff exercises.

All Double Xertubes come with hard handles.

The Xering will shape your legs and improve overall lower body muscle tone. Includes rubber grips for added comfort.

Turn your door into a home gym! This versatile attachment increases your exercise options with the Xercise Bar or any of the Xertube products.

Excellent chest, back and shoulder training tool for at-home, on the boat, or on-the-go workouts.