Mountain Hardwear Butter Up Long Sleeve 1/2 Zip — Buttery-Soft Moisture-Wicking Odor-Resistant Base Layer Top

Mountain Hardwear Butter Up Long Sleeve 1/2 Zip — the buttery-soft half-zip base layer for hikers, travelers, and all-day wearers who want chafe-free comfort. Purchase now for $29.34, 50% off the $58.68 compare-at price, at Trek Haul Outfitters.

How to Layer the Butter Up 1/2 Zip

Wear it as a next-to-skin base layer in winter, a standalone top on cool trail days, or a travel shirt. The center-front half-zip vents heat on climbs; the low-profile thumb holes keep sleeves in place under a mid-layer or shell.

Layering System Guide

• Base: Butter Up 1/2 Zip against skin for moisture wicking
• Mid: fleece or insulated jacket for warmth
• Shell: rain or wind layer for weather protection

Is It Good for Winter Hiking?

Yes — as a base layer, the stretch knit wicks sweat and fights odor so you stay fresh across multi-day use. It's a warm-in-system piece, not a standalone parka; add insulation on top for freezing temps.

Does It Shrink?

The performance stretch fabric resists shrinking when cared for properly: machine wash cold and tumble dry low or hang dry. Avoid high heat to protect fit and odor-control treatment.

How to Wash the Butter Up 1/2 Zip

Machine wash cold with like colors; hang dry or tumble dry low. The odor-fighting finish means you can wear it on repeat before washing.

Price Value and Deal Value

$29.34 saves $29.34 (50%) versus the $58.68 compare-at price. Apply coupon SAVE15 at checkout for an additional 15% off this already affordable deal.