The Lone Peak 4 Mid RSM is made to face the elements. As part of the Altra All-Weather Series (AWS) the RSM (rain, snow, mud) Lone Peak Mid features a brand new eVent® upper, which offers leading 100% waterproof technology and leading breathability providing maximum comfort and protection in the widest range of conditions. This new fabric material is also lighter and more durable than our previous version. The 4-point GaiterTrap™ and fresh mountain design complete the upper, while the updated, multi-directional lugs on the outsole bring you optimum grip.
Ideal Uses: Trail Running, Hiking, Fastpacking, Trail Racing
Improves: Natural Foot Positioning, Toe Splay, Comfort
Stack Height: 25 mm
Weight: 12.9 oz / 366g
Outsole: DuraTread™ and TrailClaw™
Midsole: A-Bound™ and EVA with sandwiched StoneGuard™
Upper: eVent® Fabrics
Durable outsole rubber made to last long and offer great grip on both tame and technical terrain.
This unique tread pattern positions lugs beneath your metatarsals for incredible traction in steep climbs and descents.
Hook-and-loop tab allows strapless gaiter attachment that prevents debris from building up beneath the shoe.
Allows your toes to relax and spread out naturally for more comfort and stability in uphill climbs and downhill descents.