High-Knees have never been so difficult!
By forcing yourself to push your
knees up with force you can develop explosive speed and running power.
Isolate your hips, Gluts, Abs, and Inner and Outer Thighs.
Two clip-on hook-n-loop adjustable
thigh straps and two 4-foot heavy resistance Safety-Sleeve™ resistance
(Item # THIGHBLAST)