This 15-inch long, 4-inch wide closed-loop flat band fits comfortable around upper or lower legs for resistive hip and knee movements through all planes of motion.

This 15-inch long, 4-inch wide closed-loop flat band fits comfortable around upper or lower legs for resistive hip and knee movements through all planes of motion. Available in two resistances.

The Yellow Xertube® is for those men and women just beginning an exercise regimine, providing the least resistance of all our Xertubes.

Green Xertube® is for beginner women and moderately fit men.

Red Xertube® is for moderately fit women or fit men. At 1-1/2 times its length, the weight equivalence of this tube is approximately 10 pounds.

Blue Xertube is for very fit women or fit men. At 1-1/2 times its length, the weight equivalence of this tube is approximately 15 pounds.

Purple Xertube® is for extremely fit men and women. At 1-1/2 times its length, the weight equivalence of this tube is approximately 20 pounds.

The Braided Xertube® takes tubing training to the next level by weaving 4 strands of SPRI's Tuff Tube™ together using our patented Braided Tubing Technology.

The Braided Xertube® takes tubing training to the next level by weaving 4 strands of SPRI's Tuff Tube™ together using our patented Braided Tubing Technology.