The Gist

A super light mountaineering boot with a convenient touring mode that could be good for rando race applications or low-angle woods exploration—testers found the RX 1.0 a little under-gunned for serious downhill performance.

Fit

This is a compact unit, fitting shorter than most in length and tighter than most 98mm boots in the toebox, testers agreed. Going up one size might be the key for all-day touring comfort, they said. The cuff fits low on the leg with a firm tongue against the shin. Testers said the flex was long and soft.

Performance

The light weight and hike mode range of motion were stellar—great for ascending, testers concurred. The low cuff height and collapsing flex made this a foot-steering machine with low horsepower for controlling skis. Long approaches, however, will not phase this one.

Cool Features

The oversized hike mode switch was easy to operate and availed a ton of range of movement—so testers approved. Low-tech fittings are standard Dynafit certified and the 45mm power strap is a pulley-style, set-and-close number.

GENDER: Men's

SIZES (MP): 24.0-30.0

HIKE MODE: Yes

HEAT MOLDABLE LINER: Yes

CONSTRUCTION: Cabrio/3-PC