The Primal Pursuit features the same fit and feel as the Primal 2, but with a bit more oomph, like the Trailhead/Mesa. The new Trail Traction Outsole provides more grip on the trail, with a slightly higher stack height, providing a bit more cushion for more sensitive feet, yet they won’t weigh you down. Think of the Primal Pursuit as a hybrid of the Primal 2 and the Trailhead/Mesa. ;) The lightweight materials include an air mesh upper that allows for maximum air flow to wick away moisture and keep you presentable for a post-run brewski. The Primal Pursuit features the same zero-drop heel and wide toe box as the Primal 2 that allows the toes to behave like they are meant to - free and splayed. You’ll never have to load your weekend getaway pack with multiple pairs of shoes for all of your adventures and social activities, the Primal Pursuit has got you covered for all of it! Features Last: Lems Natural-Shape Last (wide toe box) Upper: PU synthetic or suede with air mesh for breathability Lining: 100% moisture-wicking polyester Outsole: All new Trail Traction outsole with 3.5mm lugs Footbed: Adventure Insole - 4.5mm moisture wicking PU w/ firmer cushioning in heel for added protection + comfort Stack Height: 14mm (5mm rubber outsole + 9mm EVA midsole) Drop: 0.0mm (Zero-Drop) Weight: 10.5oz. (Women's 11.5) Vegan: Morning Dew, Nocturnal Ninja & Orion Blue colorways Primal Pursuit vs. Primal 2 & Trailhead/Mesa: What’s the Difference? If you need additional room in the shoe, you can remove the insole for extra volume. Sizing Charts + Measurements Guide