Updates to Merrell Thermo Rogue 2 Boa Mid GTX

  • This model is an updated version of the Thermo Rogue boot. It has a different lacing system known as the BOA Fit which consists of a micro-adjustable dial, durable lightweight laces, and low friction lace guides.
  • It’s equipped with the Merrell exclusive Vibram® Arctic Grip All-Terrain outsole that is long-wearing and highly resistant to abrasion.
  • It also comes with a Gore-tex lining that creates an effective barrier against external moisture, and Primaloft Gold insulation for keeping the foot toasty in negative-degree temps.

Size and fit

The Merrell Thermo Rogue 2 Boa Mid GTX men and women hikers are mid-top models featuring the BOA Fit technology which gives you the freedom to customize the fit through a simple dial-in system. There’s also a clasp band around the cuff for a secure fit amidst aggressive movements.


This boot uses the Vibram Arctic Grip outsole that “sticks” well on snow and ice. The aggressive lugs are 5mm deep for increased traction on varying surfaces. According to Vibram, the Arctic Grip is their most advanced outsole that features improved grip on ice, cold, or snowy grounds.


For the midsole, this boot features compressed EVA. Compared with other foams, EVA has a lower density which makes it very lightweight. This results in a lightweight shoe that is really supportive and stable.

For added comfort, the boot comes with a removable contoured insole.


The Merrell Thermo Rogue 2 Boa Mid GTX has a very distinctive upper made of water-repelling ballistic textile and neoprene. The shaft goes ankle-high and is reinforced by a strap around the cuff. Inside are a Gore-tex lining and 200 grams of Primaloft Gold insulation to keep the feet dry and warm even in freezing temps.

This boot is equipped with additional features for protection and support, such as a molded nylon arch shank and a rubber toe cap. 

Completing the upper is the BOA Fit System which involves the use of a dial-in instead of regular laces. This innovative feature that lets you customize the fit of the shoe based on your needs.

Nice to know

  • No animal products are used in manufacturing this shoe, which makes it vegan-friendly hiking footwear.
  • Merrell has a lot of footwear products for hiking. If you prefer a mid-top shoe that has a traditional lace-up closure but also has insulation and waterproofing barrier, check out the Thermo Chill Mid Shell Waterproof.

Facts / Specs

Weight: Men 516g / Women 412g
Use: Snow
Cut: Mid cut
Features: Insulated, Vegan / Orthotic friendly / Removable insole
Waterproofing: Waterproof
Width: Normal

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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.