Trail Running Shoes

Brooks Caldera 6 vs ASICS Trabuco Max 2: Two Max-Cushion Trail Shoes Compared

A closer look at two chunky trail runners, including a soft EVA midsole, a serious Vibram outsole, and honest notes on fit and durability.

Two max-cushion trail running shoes side by side on concrete, one tilted to show lugs

Introduction

If your trail running leans toward easy, bopping-along days rather than technical scrambles, max-cushion trail shoes are an appealing category. Two models worth shortlisting are the Brooks Caldera 6 and the ASICS Trabuco Max 2. Both take the same basic approach: a big, soft underfoot platform, plenty of outsole, and comfort as the headline feature. But the details matter, and they differ in ways that could swing your purchase.

Testing Approach

This comparison comes from real trail mileage, including a proper mud bath of a testing session. Shoes were run well past the break-in point before drawing conclusions, and physical checks like a durometer reading and a thumb-press test were used to gauge midsole softness and durability expectations. The shoe weighed in at 9.9 ounces with mud still caked on, so a clean weight is likely slightly lower, around the 9.7 to 9.8 ounce mark.

The Midsole: Comfort First

The Trabuco Max 2’s midsole is the star of the shoe. It is an EVA midsole molded in a heat press, which gives it a unique construction and a very soft feel underfoot. The durometer reading came in at 31, which is genuinely soft, and the thumb test confirms it: this is a squishy, comfortable platform built for easy days.

Close-up of a soft thick midsole being pressed by a thumb to show squish

As far as ride and energy return go, though, it is a cruising shoe. It shines on relaxed trail runs where comfort matters more than snap. The Caldera 6 shares that same easy-going personality, which is why both shoes score so well on comfort even when other areas of the build raise questions.

The Outsole: Serious Traction for the Mud

The Trabuco Max 2 wears a Vibram outsole with huge, girthy lugs, some of the biggest and chunkiest you will find under a max-cushion trail shoe. Combined with a slightly decoupled groove in the outsole construction, it was outstanding in deep mud.

Trail runner's shoes covered in thick wet mud on a muddy forest path

The one caveat: the lugs may be more aggressive than the midsole calls for. For a shoe positioned as an easy-day cruiser, a slightly shallower lug could arguably pair better with the soft, bouncy-soft midsole. If your trails are muddy and sloppy, though, that extra bite is exactly what you want.

Fit and Upper Notes

The upper is the weakest part of the Trabuco Max 2. It is essentially a one-piece upper with a full gusset, and the fit runs a little loose. The laces are extremely simplistic and lack the slight give needed to cinch down properly, so locking in the midfoot is harder than it should be. The heel pocket could also use more padding, both inside the heel counter and along the inner walls, because when you are carrying this much shoe underfoot, heel slip is the last thing you want.

Laces threaded through the eyelet chain of a running shoe upper

None of this produced actual heel slip during testing, but the sense of being anchored in the shoe was not as confident as it could be. Small tweaks to the eyelet chain, laces, and heel padding would go a long way.

Durability

Softness has a cost. With a durometer of 31, this midsole is very soft, and that impacts durability. Expecting to get meaningful mileage past 400 miles is probably optimistic. This is not a shoe built to the rugged durability standards of brands like La Sportiva or Salomon, so plan your replacement cycle accordingly.

The Scores

The overall shoe earned a 9 out of 10 for comfort, driven almost entirely by the midsole rather than the upper. Lockdown scored 7 out of 10, reflecting the loose fit, basic laces, and heel pocket concerns. The outsole scored highly on traction thanks to the Vibram rubber and those massive lugs, even if the lug depth feels slightly mismatched to the shoe’s easy-day mission.

Which One Should You Pick?

Asked to pick just one, the Trabuco Max 2 edges it. The combination of that ultra-soft heat-pressed EVA midsole and the monster Vibram lugs makes it the more distinctive shoe, especially if mud or soft ground features in your running.

Trail runner on smooth rolling singletrack in soft golden afternoon light

If your routes are drier and more groomed, the Caldera 6’s slightly less aggressive stance may be the better match. Either way, both are best treated as comfort-first easy-day trainers rather than all-out technical trail weapons.

Conclusion

The ASICS Trabuco Max 2 delivers outstanding comfort and exceptional mud traction, held back by a loose-fitting upper and softer-than-ideal durability. The Brooks Caldera 6 is the more balanced easy-day option. Pick the Trabuco Max 2 for squish and grip, the Caldera 6 for a more understated all-rounder.

Further reading

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