Mount to Coast M1

Yeti states that J-Cell beats every material in tensile and tear (spirit tear) strength.

Yeti states that J-Cell has very good energy return and rebound, slightly better than Pebax.

Yeti states that J-Cell shows much better durability compared with Pebax.

Yeti states that compared with the T1, the M1 has a wider bottom plate.

Yeti states that lab data and feedback show the J-Cell foam has excellent energy return, even slightly higher than Pebax.

Yeti states that the M1 is designed for all terrains, especially the most technical terrains in the world.

Yeti states the M1 has a stack height of 38mm heel / 34mm forefoot, a 4mm drop.

Yeti states the M1 has full-coverage Vibram outsole with Meta Grip 4LS and 4mm lugs.

Yeti states the M1 price is $195.

Yeti states the M1 upper has the brand's traditional dual lacing system (speed lace and traditional lace) for a versatile fit, providing midfoot and heel lock.

Yeti states the M1 upper uses a mix of TPU and nylon, making it softer and with a little more stretch than pure nylon.

Yeti states the M1 uses a new foam technology called 'J cell' (J-Cell), distinct from the 'circle cell' used in the H1.

Yeti states the M1 weighs roughly 280g in a US size 9.

Yeti states the first colorway of the M1 will launch in June 2026.

Yeti states the wider bottom plate is for more stability.

Marathon Handbook attributes the Mount to Coast M1's design concept to being built around the idea of the Western States 100 course.

Marathon Handbook attributes the shoe concept to Mount to Coast co-founder Yeti, who observed the Western States course while crewing an athlete and conceived a shoe that is fairly runnable but fast.

Marathon Handbook observes that an athlete (Manu) wore a first prototype of the Mount to Coast M1 for the entire Moab 240 race, start to finish.

Marathon Handbook observes the Mount to Coast M1 has a build of two types of [material/froth] and is 42 mm.

Marathon Handbook observes ultrarunning is getting faster and faster, and the Mount to Coast M1 answers the question of what fits in that space in an athlete's quiver.

Mount to Coast founder Yeti presents the Mount to Coast M1 as the brand's biggest trail shoe build for the upcoming year.

Yeti relates that the Mount to Coast M1's ATPU material originally came from the automotive industry, used as protection film for car paint, and is good for durability and scratch resistance.

Yeti states Mount to Coast athletes currently wear the Mount to Coast M1 in UTMB races, and one athlete recently broke the triple crown (three 250-mile+ ultras) wearing an M1 prototype.

Yeti states the Mount to Coast M1 has a wider bottom unit compared to the T1.

Yeti states the Mount to Coast M1 has full-coverage Vibram outsole with 4 mm lugs.

Yeti states the Mount to Coast M1 is intended for runners looking for more stability and more secure shoes, especially in UTMB and other very high technical terrains.

Yeti states the Mount to Coast M1 stack height is 38 mm heel / 34 mm forefoot.

Yeti states the Mount to Coast M1 upper combines TPU with nylon to give the material some elasticity, plus TPE yarns that do not absorb water and are durable and easy to drain.

Yeti states the Mount to Coast M1 uses a completely new midsole material called Jet Cell, which is an aliphatic TPU (ATPU).

Yeti states the Mount to Coast M1 will be launched in June of the following year (2026 implied by earlier context).

Humble Running attributes to Yeti that the M1 has a Vibram outsole with 4 mm lugs.

Humble Running attributes to Yeti that the M1 has a wider bottom than the T1 for stability.

Humble Running attributes to Yeti that the M1 stack height is 38 mm heel, 34 mm forefoot (4 mm drop).

Humble Running attributes to Yeti that the M1 uses a brand new TPE upper material that provides dynamic wrap and fit.

Humble Running attributes to Yeti that the M1 uses a new midsole called JetCELL based on ATPU for high rebound energy return and long-term cushioning.

Humble Running attributes to Yeti that the M1 weighs 265 grams (9.6 oz) in a US size 9.

Humble Running describes the Mount to Coast M1 as the brand's feature all-mountain model.

Humble Running estimates the US 10 M1 will weigh around 280 grams.

Humble Running feels the M1 feels great on smoother trail surfaces.

Humble Running finds a very good ratio of stack (38/34) to weight (around 280 g in US 10).

Humble Running finds the JetCELL midsole super bouncy — 'I am just bouncing along.'

Humble Running finds the M1 a perfect fit for their preferences and foot shape.

Humble Running finds the M1 capable in terms of foot and toe-box comfort for super-long ultra distances.

Humble Running finds the M1 plenty protective underfoot despite having no plate — noting no rocks getting through to the foot.

Humble Running finds the M1 requires less cognizance of foot placement due to protective factor and higher stack compared to the Kjerag 02.

Humble Running finds the M1's 38/34 stack feels very well balanced — the heel does not feel high nor does it ride flat.

Humble Running finds the M1's ATPU foam rivals any of the top ATPU foams on the market today.

Humble Running finds the T1 more suitable for shorter-to-medium distances, whereas the M1 is positioned for all-mountain use.

Humble Running is testing a sample pair of the M1 in US size 10 and finds the fit absolutely perfect.

Humble Running notes the M1 has the traditional dual-lacing 'Tune Fit' setup from Mount to Coast, which feels very well secure, and notes that regular laces can be swapped in.

Humble Running observes an immediate difference underfoot with the new JetCELL ATPU-based foam and finds it high-energy, high-rebound, and high-resilience.

Humble Running observes no noticeable taper to the M1's shape and believes that with correct sizing there should be no problems anywhere in the toe box.

Humble Running observes on rocky and uneven terrain that the bounciness and energy underfoot is something that will have to be managed — but notes the bounce, softness, cushion, and extreme light weight.

Humble Running observes that the M1's toe-box shape is 'best of both worlds' — a slight taper but plenty wide across the forefoot, with a beautiful rounded shape.

Humble Running observes the M1's shape is more like Mount to Coast's road models (R1, C1) — a rounded shape — and is glad that shape was brought to the trail line.

Humble Running reports that the M1 release date for retail partners that pre-ordered is around the third week of August (approximately August 20th), with a second wave around September.

Humble Running would not want to go down a size in the M1, loving the spaciousness for an all-mountain model.