Ultra Sole Performance Replacement Insole Hiking Boots First-in-Class Comfort of the Fas-Trac®

First-in-Class Comfort of the Fas-Trac® III Suspension

800 grams of Thinsulateâ„¢ insulation

Performance Filter P100 for 3M Reusable Respirators

Kick Off Lug for Easy On and Off

On the ground

Ultra Sole Performance Replacement Insole Hiking Boots First-in-Class Comfort of the Fas-Trac®Ultra Sole Performance Replacement Insoles absorb shock, return energy and provide long lasting comfort. This is the upgraded version of the RX Sorbo Ultra Work Sport insole. The Ultra Sole combines a molded air infused foam base with a Sorbothane heel inlay for shock absorbing comfort and impact protection. Strategically placed forefoot pad works to return energy. These are perfect for work boots, running, walking and athletics. Product Overview