Merrell Thermo

Where do you plan to run?

• Road or track: Lighter shoes for speed, more cushioned shoes for distance
• Gravel paths: Hybrid shoes, designed for both road and trail

Cushion comes down to "feel" vs. "float"

• Minimal and barefoot cushioning: little to no padding, more groundfeel
• Moderate cushioning: more traditional ride
• Maximum cushioning: softest, bounciest ride

What kind of support do you need?
Depending on your gait, you may need a stability shoe. But most runners will fare well with a neutral shoe.

Make sure the shoe fits.
No breaking in periods, period! Your shoe should fit well from the get go.

How long will you be on the trail?

• Hiking shoes: day hikes or ultralight backpacking
• Hiking boots: multiday treks with heavier loads
  

What upper is right for you?

• Leather: water- and abrasion-resistant, durable
• Synthetic: lightweight, break in easily, dry faster
  

Look at the lugs

• Deep, thick lugs improve grip
• Wider lug spaces sheds mud and offer good traction

Check crampon compatability
Mountaineering and winter hiking may call for crampons. Narrow your search for boots with crampon compatibility.

Where do you plan to run?

• Light trail: Best for well-groomed trails
• Rugged trail: Work on a wide variety of terrain, including technical trails
• Off trail: A more aggressive design protects you on rocky, extremely variable terrain
  

Cushion comes down to “feel” vs. “float”

• Minimal and barefoot cushioning: little to no padding, more ground feel
• Moderate cushioning: more traditional ride
• Maximum cushioning: softest, bounciest ride

Check the heel-to-toe drop

Barefoot and minimalist shoes are very flat with 0-4 mm drop. Moderate and maximalist shoes have higher drop. Choose what you're used to.

Consider the fit

Don't assume you know your size—go to your local REI or running-shoe store to get a fit assessment. Happy running!