Traction - 10
Overall Rating - 8.7
Cushioning - 8
Breathability - 9.5
Fit - 8
Merrell, well known for making quality trail running shoes for the past 5+ years has come out with a new model for the aggressive trail runner who likes to attack the trails. The Merrell All Out Crush is a no nonsense trail running shoe through a minimal overall weight (8 oz. per shoe) and big lugs to give you traction on any terrain.
Merrell All Out Crush Upper
The Merrell All Out Crush upper is more built up than you might think considering each shoe only weighs 8 oz.. Instead of using a laminated upper, Merrell went with the tried and true stitch and sew style to ensure each piece of fabric on the upper stays in place. This is partially due to the fact that this shoe was intended for races such as the Tough Mudder where you are often hard on your equipment. The last place you want an equipment fail is when you’re walking and running over red hot coals.
If you look closely, there is a thin layer of rubber with holes to breath in the mesh covering the entire shoe. Once again, this is designed to keep the mud from sticking to the outside of your shoe upper. It also keeps the shoe hold up to various types of abrasion such as barbed wire.
The fit of the Merrell All Out Peak was a little narrow in the forefoot in the sample that I tested. This may be because I wear a size 12.5 typically, but they only make a 12 and 13. Even with this caveat, I still wouldn’t recommend this shoe for someone with wide feet.
In the lacing system, I feel it does the intended job of keeping your foot secure in the shoe, but there are a total of four fabric eyelets, two on each side, that you loop your shoe laces through. I haven’t seen these eyelets fail yet, but I see them being a potential problem when you start loading up the miles on the Merrell All Out Crush trail running shoes.
Midsole and Outsole Details
The outsole is made of aggressive 5mm length multidirectional lugs. These are great for technical trails and mud, but if you’re running gravel paths for the most part, they are overkill. Living in Steamboat Springs, there are a ton of technical trails to run on and I’ve tried these shoes on just about every trail that is open as of early June. To date, I found the outsole to provide superior traction on every type of trail. On the days where I a little bit of road and trail, I would prefer less lugs and more midsole, but as long as you know what you are buying into, you should be all set.
The heel to toe drop of the Merrell All Out Peak is 6mm, nice for someone used to the lower drops, but may take a little getting used to for someone who has been running in a 12mm heel to toe drop. The midsole of the All Out Peak is not extremely cushioned, the shoe feels more like a minimalist shoe in my opinion.
My overall opinion of the Merrell All Out Peak trail running shoe is mixed. The shoe runs well for the most part, but I find the fit in the toe box to be a too narrow for a medium width fit giving the shoe an awkward fit compared to other trail running shoes on the market. For this, I recommend you trying this shoe on in the store or buying from an online retailer where you can do free returns if you need don’t love the fit. For more details, visit Merrell.com