Merrell All Out Terra Ice

8.2
8.2 score
[Editors rating (8.2) + Users rating (8.0)] / 2 = Runnerclick score (8.2)/10

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Editor rating: 8.2 / 10
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Merrell All Out Terra Ice Review Facts

Do you want to climb the highest ice mountain you can find? When it snows, do you get excited about going for a run or hike on your favorite trail? Or, are you just looking for a shoe that has great traction when you need to walk your dog on a snowy winter day? If the weather won’t stop you from getting your miles in, no matter how icy or snowy, then the Merrell All Out Terra Ice is the shoe for you. This shoe is designed to give you ultimate traction on the iciest, most slippery conditions so that you can complete your run without sliding along the trail on your backside. To top it all off, this shoe is made with no animal products, making it an excellent choice for vegan runners. Keep reading to find out what makes the Merrell All Out Terra Ice one of the best shoes for tackling icy trail conditions.

Editor's Pros & Cons
Pros
  • Tungsten carbide spikes
  • Waterproof
  • Carbon Protective toe
  • TrailProtect foot padding
Cons
  • Discontinued by the manufacturer (must purchase from a 3rd party)
  • Spikes are not removable
  • Not recommended for pavement
  • Not very lightweight.
Outsole
Outsole

Outsole

The Merrell All Out Terra Ice, like many other Merrell shoes, has a Vibram outsole constructed with M Select Grip Technology. The lug depth of the Vibram outsole is 6mm. It is constructed of a rubber compound which is placed in a diamond-lugged system. The M Select Grip Technology of the outsole creates provides slip-resistant on slippery surfaces. What gives the Merrell All Out Terra Ice an extra advantage on frozen and snowy surfaces are the tungsten carbide spikes built into the outsole. They let you dig into icy surfaces. Unfortunately, the carbide spikes are not removable, so these shoes are not a good choice for running on pavement.
Midsole
Midsole

Midsole

The midsole of the All Out Terra Ice is constructed with Merrell’s signature Midsole Unifly Technology. The firm midsole to heel construction softens and spreads out the impact caused by foot strike. In turn, this lessens the pressures, discomfort, and pain that runners can experience in the arch. The Merrell All Out Terra Ice offers additional underfoot protection and comfort with the TrailProtect foot pad. The TrailProtect footpad helps to minimize the pressure of foot strike, keeps the sole of the foot protected from debris and cushions the foot from the impact. A nice feature of the TrailProtect footpad is that it is removable. This allows you to customize the fit of your shoe by adjusting the amount of padding in the midsole.
Upper
Upper

Upper

The upper of the Merrell All Out Terra Ice is constructed of mesh and TPU, which has some benefits. First, the mesh is breathable, which allows your foot to get some air and keeps it from getting too sweaty or smelly. The upper of the Merrell All Out Terra Ice is also equipped with M Select Dry technology, which wicks moisture away from the foot, helping to prevent the buildup of bacteria that can cause foot odor and other ailments. Reflective detailing by 3M highly increases visibility in dark conditions, and strong synthetic leather laces and a tight-fitting, protective tongue help keep debris from entering your shoe.
Weight
Weight

Weight

A pair of Merrell All Out Terra Ice for men weighs about 26 ounces. A pair of women’s Merrell All Out Terra Ice weighs approximately 23 ounces. These are not a light weight shoe, but that is a good thing considering they are meant for running on ice and snow. The extra weight will help keep you grounded while you run because you will be better able to dig into ice and snow.
Breathability
Breathability

Breathability

The mesh and TPU construction of the upper allows air to circulate around your foot and through the shoe, minimizing sweat and bacteria build up as a way to combat foot odor. Additionally, it is waterproof and equipped with M Select Dry technology which pulls moisture away from your foot, keeping your foot and shoe feeling airy and dry. For a shoe that is made to be used in the ice and snow, it is highly breathable.
Comfort
Comfort

Comfort

Even for its heavy weight, the Merrell All Out Terra Ice is a comfortable shoe. One reason for this is the TrailProtect Pad, which not only cushions your foot but helps keep your shoe free from debris. The TrailProtect pad is also a removable feature of the shoe, making the fit, and therefore comfort, customizable. The Merrell All Out Terra Ice is also comfy because the upper is constructed of mesh and TPU, which is flexible, allowing your foot to move comfortably and without being constricted. It is also breathable, which keeps your foot, shoe, and sock dry to help prevent chafing, blisters, and odor.
Style
Style

Style

The Merrell All Out Terra Ice has a sleek, low-profile design even though it is a heavier trail running shoe. It has 3M reflective detailing to help increase visibility in low-light areas. It is available in 3 color schemes for men and 4 color schemes for women. Both genders offer neutrals and brights to perfectly coordinate with your running wardrobe.
Durability
Durability

Durability

With its rubber-constructed Vibram outsole, deep diamond-set lugs, and tungsten carbide spikes, the outsole of the Merrell All Out Terra Ice is highly durable, even in the toughest, iciest conditions. In addition to providing protection and grip, the carbon toe can stand up to a great deal of wear and tear. However, the midsole of the foot tends to wear quickly, so a replacement foot pad might be necessary to help the midsole match the lifespan of the outsole.
Protection
Protection

Protection

This all-terrain winter training shoe offers runners all-around protection from the elements. The rubber-constructed Vibram outsole keeps the bottom of your foot dry, and its strong non-slip grip protects you from slipping. The carbon toe helps keep your toes safe from the impact of climbs or the accidental kicking of rocks. The secure fit of the mesh and TPU upper keep debris out of your shoe, and its waterproof feature helps keep your feet nice and dry. The Midsole Unifly technology and the TrailProtect pad absorb shock, protect your foot (especially the arch) from harsh, painful impacts, and also help keep debris from getting underfoot.
Responsiveness
Responsiveness

Responsiveness

The flexible mesh and TPU construction of the upper respond to the movement of your foot, allowing you the flexibility to tackle even the toughest obstacles comfortably and safely.
Support
Support

Support

Your foot is fully supported in the Merrell All Out Terra Ice. First, the snug fit cradles your foot with both structure and padding, providing comfort and arch support. The weight of the Merrell All Out Terra Ice gives you extra presence on snow and ice, giving you more stability while you run. However, this is a low-profile shoe, so it does not provide a lot of support for your ankles.
Terrain
Terrain

Terrain

The Merrell All Out Terra Ice is designed for running on trails that are covered in ice and snow. It performs well on its intended terrain because of its tungsten carbide spikes, deep 6mm lugs, and Vibram sole construction. However, taking the Merrell All Out Terra Ice for a jog on paved surfaces, like a sidewalk or road, or even wearing them to walk through your home, is not a wise choice.

The tungsten carbide spikes are not removable, and can wear down quickly, ruining the traction capabilities of the shoe, are just plain uncomfortable and loud while running on hard surfaces, and are guaranteed to tear up your floors. It also isn’t recommended for more than a few inches of snow due to its low profile style. Even though the shoe fits snugly to keep snow and debris out, your ankles will definitely be chilly in deeper snow.
Price
Price

Price

The Merrell All Out Terra Ice is at the high end of the price spectrum for trail running shoes. This is not surprising considering they are a “specialty” running shoe, constructed specifically for running on ice and snow.
Traction
Traction

Traction

This trail running shoe has amazing traction, particularly on icy and snowy running paths. The Vibram outsole is constructed of a rubber compound and features M Select Grip Technology, which grips to any surface. The lugs are diamond-set and are 6mm deep, allowing them to dig into the ground on which you are running. The carbon toe, which has mini-lugs, allows you to maintain stellar grip while running up steep, slippery inclines.

The star feature of this shoe that gives it such great traction in ice and snow is the tungsten carbide spikes. These dig into the toughest icy trails and climbs, allowing you to keep moving forward instead of sliding or falling.
Flexibility
Flexibility

Flexibility

Although the Merrell All Out Terra Ice offers runners a very secure fit, it has a roomy and flexible toe box. This is a great feature because it allows your foot to respond to any change of terrain or obstacle that your winter trail run can throw your way. It also allows your foot to be comfortable at all times because the shoe is able to move with your foot, rather than constrict it.
Stability
Stability

Stability

You will maintain stability in snow and ice with the Merrell All Out Terra Ice because of the M Select Grip Technology of the rubber Vibram outsole, the deep 6mm diamond-set lugs, and the tungsten carbide spikes that can grip into any icy trail you encounter. However, it won’t provide a lot of stability for your ankles.
Drop
Drop

Drop

Both the male's and the female's versions of the shoe have a 6mm drop. The shoe is not a minimalist one, and this is an advantage especially in the ice and snow. You will definitely feel grounded while wearing the Merrell All Out Terra Ice on a snowy or icy trail run or hike.
Size
Size

Size

The Merrell All Out Terra Ice is available in both normal and wide widths for both men and women. It has a secure heel cup, true-to-size fit, and cushions your foot with the TrailProtect Pad. If the TrailProtect Pad affects the fit of the shoe, it is removable to meet your shoe fit preferences.
Key Features
Key Features

Key Features

• Tungsten carbide spikes
• Waterproof and moisture-wicking
• Durable outsole
• Removable footpad
• Vegan
Bottom Line
Bottom Line

Bottom Line

If you are looking for a shoe with extreme grip in ice and snow, the Merrell All Out Terra Ice is definitely the footwear you want to try. With a rubber Vibram outsole featuring M Select Grip Technology, deep 6mm diamond-set lugs, a carbon toe, and tungsten carbine spikes, you won’t be slipping or sliding anywhere unexpected on your winter trail run in these shoes. The waterproof and moisture-wicking construction of the Merrell All Out Terra Ice will ensure the dryness of the shoe and the feet, so you won’t have to worry about gross foot odors, blisters or chafing. Just remember- don’t wear these shoes in the house (unless you are looking for a reason to install new flooring).