Ultra-Sil Compression Sack Medium Cardio Measure running and cycling performance

Measure running and cycling performance in ways you didn’t know were possible

The Nike Pro Dri-FIT Top hugs you in lightweight fabric with breathability built into high-heat zones to keep you cool and dry from warm-ups to cool-downs

Mesh in the upper is flexible and breathable

Adapters for other widths available

Stop-and-Go Control

Ultra-Sil Compression Sack Medium Cardio Measure running and cycling performance30D diamond ripstop siliconised CORDURA fabric Flip top lid design prevents strap tangling Four straps for even compression Extra long straps so they can really be filled to capacity Bar tack reinforced stress points Pull handle on the bottom Slippery finish for easy packing