The North Face Impulse Men's 1/4 Zip pullover is a super-wicking, very warm performance top for running in the winter or doing other aerobic activities like hiking, skiing or snowboarding. Made of a stretchy polyester mix, the North Face Impulse 1/4 Zip pullover for men has double-knit panels under the arms for added breathability, thumb loops and - cool feature - glow-in-the-dark zipper pulls.

An ideal athletic fit to the Atlas top makes this a baselayer with little equal. With Merino's ability to wick moisture, breathe, and keep you comfortable in a variety of warm and cold weather--all without the funk of traditional synthetic baselayers, there's just no reason not to wear an Icebreaker top.

The Icebreaker Men's 150 Crewe is a 150 gram Merino wool long sleeve crew. A small amount of Lycra gives this warm crewe a close, comfortable fit. The Men's 150 Crewe is perfect as a stand alone piece or a warm inner layer. If you haven't tried Merino Wool - trust us - you'll love the way it feels. Fits close to body.

With a close to the body fit, the Oasis Crew from Icebreaker should be one of the elemental baselayers in any active outdoorsman's clothing drawer. Resistant to odor and excellent breathability make Icebreaker's Oasis Crew Long Sleeve Shirt versatile--worn alone or as part of an active layering system. Features include gusseted underarms, flatlock stitching, and forward side seams to avoid chafing under pack straps.

The Icebreaker Men's Oasis Crew longsleeve shirt is a 200 weight Merino crew. A go to layering option, the Men's Oasis Crew feels great on your skin, it's odor resistant and small details - like flatlock seams - make it comfortable for when you're carrying a heavy pack. Slim fit.

The Icebreaker Men's 260 Crewe is a great do-everything piece. Featuring all the best properties of Merino Wool, the Men's 260 Crewe is odor resistant, fast drying and has a great next-to-skin feel - that's right NO ITCH. A close fit and non-chaffing flatlock stiching make this a great winter travel piece. Fits close to the body.

Weather deteriorating fast and the pitch ahead looking dubious? You can at least take solace in the warmth of this zip-neck.

There's a reason that Icebreaker's Bodyfit 260 Long Sleeve is a best-selling classic year after year. The 200 weight 100% Pure Merino is light enough to be worn alone on long haul runs or during fluid full day climbing ascents. But it's equally adept as a heavier baselayer in colder conditions. With a close to body fit, the Icebreaker Bodyfit 260 Crew is a long sleeve dream shirt for any man.

The Icebreaker Men's Tech Top longsleeve is a 1/4 zip neck, 260 weight Merino wool pullover designed with the active user in mind. Wear it as a warm base layer or use it for cold morning runs. The Men's Tech Top features a drop-tail hem in back, 2 thumbloops and fits close to the body.