The Gym+Coffee Relentless 1/4 Zip is a slim fit mid-layer that features a 4-way stretch fabric that is both breathable and soft against the skin

race-ready fit

Heel-to-toe drop: 10mm

The Trailfly's 4mm rubber studs are perfect for gripping rock and hard-packed

The dual foam midsole maximizes cushioning

Women's Inov-8 Trailfly Wide Camelbak The Gym+Coffee Relentless 1/4 ZipRun every day on hard, dry and rocky trails in the Inov 8 Trailfly, your new go to shoe for training runs and longer trail races. The Trailfly's 4mm rubber studs are perfect for gripping rock and hard packed, dry ground. These hard wearing studs have been positioned in such a way to make the shoe faster, by helping you push off at the toe, as well as helping you brake quicker at the heel. The GRAPHENE GRIP rubber outsole has also been improved from