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W's Butter Up W LS-Gamma Grey Shad
Description
Women's Butter Up™ Half Zip
The Mountain Hardwear Women's Butter Up™ Half Zip is a high-performance base layer designed for athletes and adventurers who demand comfort and functionality across demanding conditions. Whether you're tackling multi-day expeditions, hitting the slopes, or navigating long days on the trail, this versatile stretch top delivers the reliable moisture management and soft-touch feel you need from first layer to last.
Constructed from a brushed jersey knit blend of 85% polyester and 15% elastane, the Butter Up™ Half Zip lives up to its name with an exceptionally buttery-soft hand feel that moves with your body rather than against it. The four-way stretch fabric eliminates chafing and restriction, making it equally well-suited as a standalone top or as a foundational layering piece beneath insulating or shell layers.
Built-in anti-odor and moisture-wicking properties mean this top can handle back-to-back wear without sacrificing freshness — a critical advantage during extended backcountry trips or multi-day travel. The UPF 50 fabric adds meaningful sun protection, making it a smart choice for high-altitude environments and exposed alpine terrain.
- Brushed Jersey Knit: 85% Polyester, 15% Elastane for a soft, stretchy fit
- UPF 50 fabric for protection against harsh UV rays
- Moisture-wicking and anti-odor technology for extended wear
- Center front half-zip for easy venting and on/off convenience
- Low-profile thumbholes to keep sleeves in place and hands warm
- Slim, layering-friendly fit with a center back length of 26 in / 66 cm
- Approx. fabric weight: 170 g/m² / 5.01 oz/yd²
- Ideal for expeditions, ice climbing, skiing/snowboarding, winter camping, and basecamp use
With its thoughtful construction and technical fabric credentials, the Women's Butter Up™ Half Zip is a must-have base layer for cold-weather pursuits and all-day outdoor activity where comfort, performance, and packability all matter.
Return Policy
Sale items can be returned for store credit only. We cannot accept returns on gift cards.
Regular Priced (Non-Sale) Items can be returned within 14 days of delivery for a full refund to your original method of payment. If the original method of payment is unavailable, we’ll issue your refund in the form of store credit.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.