Weather Protection
This jacket’s Windstopper shell gets some help from perfect cuff adjustments and a cinch-cord at the collar, enabling the user to truly seal out wind and precipitation. The Roc+Ice was the most weather-resistant non-hoody we’ve ever worn.

Breathability
Despite Windstopper’s near-impermeability, the enhanced X-Fast backing seemed to wick humidity a little more effectively than other Gore Windstopper textiles we’ve tested. Even so, we were pleased to have easy-to-use pitzips on this windproof softy.

Mobility
Four-way stretch X-Fast fabric was a nice upgrade to other two-way stretch GWS Softshell fabrics, and this jacket’s mobility did not disappoint. Whether I was climbing, running, or (yep) turning cartwheels, the Roc+Ice stayed close and quiet.

Comfort
A sleek lining not only kept things comfy over short-sleeved baselayers, but also made it noticeably easier to layer over fleecy tops.

Attention to Detail
Silky-smooth zips, functional reinforcement at the shoulders, intelligent pocket-placement, excellent alpine fit—Millet polished every detail on this jacket to the point of transparency. That is, users may just forget that they’re wearing it.

Value
The Roc+Ice jacket comes packed with performance, but it comes at a price. It is a better-than-average value for technical users who like to keep it moving while in the alpine.