Our ETPU is an elastomeric rigid formulation of thermoplastic polyurethane, enabling energy return. It will hold its properties for the lifetime of the insole
Closed cell material will not absorb water when wet. Quick...
Reviews
4.7
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Winter Ride Savior
My first trial of wearing barefoot styled shoes ended in success thanks ..solely.. to these boots. Had a 12 mile MTB adventure mechanically sabotaged which meant lots of walking in PNW winter cold and wet. I have no doubt these boots saved my skin a great deal of unpleasantness due to their solid construction and waterproofing. Thanks for the quality product
J
Jordan · January 22, 2026
Too long but otherwise great. Size down.
Bought size 44 thinking it would fit like the Flexile and Ortholite insoles, which I swapped seamlessly between the Mudee and Pace). The Rebound insole is too long for either of those, as well as the Citee I just bought. The tip at the big toe seems to be the culprit, as it is disproportionately long compared to the 5th toe compared to the Ortholite insole. Without trimming it fit perfectly into a size 45 Reebok Nano with a more conventional toe box. Trimming ~6 mm or so from the tip of the big toe spot allows it to fit into most of my size 44 shoes, Freet or otherwise. The narrower midfoot allows it to fit into a variety of lasts, compared to the Ortholite which has a straighter cut; I think this is a good thing but I could see it not fitting so securely in some shoes, or causing blistering on some medial arches depending on the shoe.
It seems to be holding up well and providing just enough impact protection and sensation of energy return. I don't expect it to compress and feel dead as soon as a PU or EVA insole would. I've waited years for a zero drop, wide toe box ETPU insole so this is a game changer. If/when I buy another set I will go one size down.
V
VJB · April 7, 2025
Zero drop shoe with the cushion of a normal shoe.
I’m a letter carrier and walk up to 15 miles (24km) a day on concrete. These insoles have helped me greatly with my endurance walking every day. The standard insoles were great for recreational hiking, but made my feet feel sore due to the extreme usage every day. These insoles made all the difference. Now I enjoy walking naturally with good ergonomics with cushion.