Merrell Thermo Cross 2 Mid Waterproof notable features

-This waterproof boot from Merrell integrates several exclusive technologies for on-trail performance. These are the M Select DRY impermeable membrane for waterproofing, M Select WARM for insulation, and Vibram Arctic Grip Dura for durability and grip on ice.

-The full-grain leather upper keeps the water out and is less prone to wear and tear.

Size and fit

The Merrell Thermo Cross 2 Mid WP is a mid-cut winter boot created for men and women. It comes with a Kinetic Fit BASE insole that is contoured like your foot and a traditional lace-up closure for a more precise fit.


This hybrid footwear is made with the Arctic Grip outsole - state-of-the-art technology and so far the most advanced cold-weather gripping sole that Vibram has created. 

Specifically engineered and designed to perform on wet ice, the Arctic Grip sole is composed of wide contact areas and rubber lugs with wider support surfaces. The lugs are 5mm deep, which ensures greater traction, especially on slippery grounds.


The shoe features the FLEXconnect dual-directional flex-groove that is made from ethylene-vinyl acetate (EVA) foam. It’s lightweight, cushiony, and flexible which are ideal qualities for a light yet powerful hiking boot.

For more comfort, support, and protection from impact, a removable Kinetic Fit BASE insole is added into the boot. This Merrel exclusive footbed is made from recycled EVA. It has an intuitive shape, absolute arch coverage, and advanced heel lock.


The Merrell Thermo Cross 2 Mid Waterproof is constructed with a full-grain leather upper - a top-quality leather that does not wear out easily. The boot is lined with M Select DRY impermeable membrane, which is another Merrell technology that protects the foot from getting wet. 

What makes it super warm and comfortable is the 200g lightweight insulation, known as M Select WARM. This technology works by creating reflective micro spaces that trap the body heat, thereby creating a warm environment for the foot without the added bulk. 

The molded nylon shank holds the shoe in place while providing additional support for the arch area. Unlike their steel counterparts, nylon shanks are warmer and softer but are extremely supportive. They are also much lighter.

Finally, the upper comes with a protective rubber toe cap, a bellows tongue for keeping the debris out, and a traditional lace-up closure for a secure fit.


The current trend of Merrell Thermo Cross 2 Mid Waterproof.
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Paul Ronto
Paul Ronto

Over the past 20 years, Paul has climbed, hiked, and ran all over the world. He has summited peaks throughout the Americas, trekked through Africa, and tested his endurance in 24-hour trail races as well as 6 marathons. On average, he runs 30-50 miles a week in the foothills of Northern Colorado. His research is regularly cited in The New York Times, Washington Post, National Geographic, etc. On top of this, Paul is leading the running shoe lab where he cuts shoes apart and analyses every detail of the shoes that you might buy.