The Icebreaker Men's Legion Zip is a 320 gram Merino wool pullover that's very breathable, odor resistant and works great as a causal or active midlayer piece. The Men's Legion Zip has contract detail on the shoulders and raglan sleeves cut to add mobility. Slim Fit.

Patagonia's R1® Fleece Pullover is made with Regulator® grid fleece that packs down small and light in your pack yet traps warmth against your body for the ultimate in a lightweight form-fitting midlayer. Use it alone on cold morning trail runs or under a shell for a versatile top that allows you to dump heat quickly or zip it up when you're settling in for a long belay.

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.

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

A rugged fleece with chiseled good looks, Patagonia's Better Sweater 1/4-Zip Fleece Pullover for Men works well under a shell on the mountain and impresses the in-laws at dinner. Low in bulk and high in warmth and charm, the Better Sweater 1/4-Zip aims to please with its soft fleece interior and moisture wicking attributes that make it at home inside or outside.

The Montane Chukchi Fleece 1/4 Zip for men is a classic micro fleece shirt sewn from Polartec® fleece. The Montane Chukchi Fleece 1/4 Zip is a great mid layer or stand-alone piece at home high in the mountains or relaxing around the house. Weighs 8.3 ounces. Available in a Classic Mountain fit.

A signature classic from Patagonia that helped create the brand the Synchilla® Snap-T® fleece pullover is a go-to midlayer piece with cross-generational appeal. The recycled polyester fleece offers Y-Joint™ sleeves and a taped placket and an on-seam snap chest pocket that has helped make this fleece pullover an excellent choice for outdoorsman for decades.

The North Face Glacier 1/4 Zip Men's Pullover is made from soft, fine Polartec® Class 100 micro fabric and keeps you warm on cold morning walk across the campus.

ExOfficio's Alpental Pullover is a fleece sweater with the outdoor credentials to take you higher. Inspired for the active outdoorsman who doesn't always want to look active, the Alpental Pullover is a great choice for any day out on the street. The Alpental features a durable outside that layers well and a super-soft interior for against-the-skin comfort.