"Women's Mount to Coast® R1: The Women's Mount to Coast R1 is a neutral trail running shoe built for runners who go long and need their gear to hold up from the first mile to the last. At 8.5 ounces with a 35 mm heel and 27 mm forefoot stack, it sits in a range that gives you real cushioning underfoot without feeling heavy on the move. The GOFLOW™ midsole geometry promotes a smooth heel-to-toe transition, which helps you maintain a more efficient stride when your legs start to fatigue deep into a run. If you spend hours on trail and need a shoe that keeps working as hard as you do, the R1 is worth a close look.A lot of what makes the R1 work over long distances comes down to how it manages fit and cushioning across extended efforts. The TUNEDFIT™ Dual Lacing System uses two independent lacing zones so you can lock down the midfoot without squeezing the toe box - a real advantage when your feet swell on long runs. The ZeroSag midsole inserts are engineered to hold their shape over distance, so the cushioning you feel at the start line is still there at mile 40. The LightCELL™ midsole base keeps the overall weight low while adding enough bounce to take some of the edge off tired legs. The double-layered jacquard upper - made with 40% recycled polyester - adds structure and breathability at the same time, and keeps the shoe's environmental footprint lower without cutting corners on durability.Why Our Fit Experts Love This Shoe""I tested the R1 on a long trail effort and the dual lacing system was a standout - I could snug up the midfoot without any pressure on my toes, which made a real difference by the later miles. The cushioning stayed consistent throughout, and the shoe never felt like it was working against me when I was tired."" - Rachel, Road Runner Sports Fit Expert, Carlsbad, CAWho It's Best ForIf you're a neutral runner who logs serious miles on trail - ultramarathons, long training runs, or back-to-back days on technical terrain - the R1 is built around the things that matter most at that distance: consistent cushioning, a secure and customizable fit, and a smooth enough ride to keep your stride efficient when fatigue sets in. Runners who have dealt with toe box compression on long efforts will appreciate the independent lacing zones, and anyone who values a lightweight trail shoe that doesn't sacrifice cushion will find the R1 hits that balance well. VIP Family members can take the Women's Mount to Coast R1 for a 90-Day test drive with our Perfect Fit Guarantee."