Icebreaker Bodyfit Chakra Zip ($75)
Part of Icebreaker's base layer entourage, the 200-weight Chakra is thin, comfortable against the skin, and wicks sweat away from the core. The merino wool doesn't stink as quickly as synthetic materials, and the thin material sits easily under other layers.

Icebreaker Bodyfit Altitude Zip ($110)
The original Icebreaker, this zip turtleneck pullover is as warm as a thick sweater without the bulk—and provides all the wicking, no-stink, warm-when-wet performance attributed to merino wool.

Patagonia Capilene 2 Bottoms ($36)
A classic base layer that keeps you dry and warm, these bottoms are made from 54 percent polyester, feature an elastic waistband, and side seams that don't chafe.

Mammut Champ Pants ($169)
These Schoeller dryskin pants fit like a pair of favorite jeans, won't rip, have well-placed zip cargo pockets, and a high waist. The material breathes, sheds light moisture, and offers a lean, flattering fit.

Mountain Hardwear W's Annamite Jacket ($250)
Stretchy, supple, and coated in Windstopper, this technical soft shell is an ideal stand-alone on sunny days, and fits underneath more layers when the wind chill drops. Out in fall 2009.

Rab Microlight Jacket ($180)
The 750-fill down packs warmth into this extremely light, thin down sweater to keep you feeling toast on freezing days. When conditions turn, it compressed to the size of a tennis ball, saving precious space in your pack.

Rab Latok Alpine Pants ($215)
Delivering trademark Rab lightweight, functional design, these side-zipped shell pants fit over the soft shells and will keep you dry in the deluge we hope you never encounter.

Marmot W's Exum Jacket ($400)
This waterproof Gore-Tex shell is tailored to a woman's build and offers full protection from the elements.