The Kari Traa Rose 2.0 Women's Long Sleeve upgrades the brand's go-to base layer with heavyweight 100 percent merino wool. The thicker knit delivers next-to-skin warmth that holds up even when wet, keeping you comfortable through the coldest days. It is the warmest, most substantial merino base layer for deep-winter skiing.

Why we like it:

The heavyweight knit is the difference; it offers noticeably more warmth than a lightweight base layer while keeping wool's natural breathability and odor resistance. This is the merino top you reach for when it is genuinely cold.

Features and Functions:

The Rose 2.0 is made from a heavyweight 100 percent merino wool in a fine 19.5 micron, 240 gram knit for maximum warmth. The natural wool fibers provide insulation even when wet, plus moisture management and odor resistance, finished with a clean round neck.

Fit and Sizing:

A slim, next-to-skin fit with a round neck layers cleanly under a midlayer or shell. True to size, with a close, performance cut.

Bottom Line:

As a heavyweight base layer top for the coldest ski days, the Rose 2.0 is best at maximum all-natural warmth. The merino layer to reach for when the temperature bottoms out.