Women's Woolverino Microweight Merino Wool Quarter Zip Base Layer
Lightweight warmth you can count on, without the risk of overheating. This women's merino wool quarter zip is built for cool mornings, late afternoon trail runs, or as a breathable layer under your ski jacket—and looks polished enough to wear on its own around town. Thumbholes keep sleeves in place and block drafts during active pursuits, while princess seams create a flattering, feminine silhouette that moves with you through every adventure.
Why You'll Love This Base Layer
- Core Spun Technology: 84% merino wool wrapped around a nylon core delivers the softness and temperature regulation of wool with enhanced durability, stretch, and recovery.
- Thumbhole Cuffs: Keep sleeves locked in place during layering and add warmth to your hands on chilly mornings.
- Princess Seam Design: Shaped, feminine fit that flatters without sacrificing freedom of movement.
- Ultra-Soft Fibers: 17.5 micron wool creates a luxuriously soft, itch-free feel against the skin.
- Light and Packable: Microweight 145 GSM construction (8 oz in size Medium) stuffs easily into a daypack for changing conditions.
- Thoughtful Details: Chest pocket, YKK semi-auto locking zipper with zipper garage, tagless construction, and flatlock seams for chafe-free comfort.
- UPF 20 Protection: Built-in sun protection for long days on the trail.
- Triple Certified: OEKO-TEX Standard 100, Woolmark, and Responsible Wool Standard certified for quality and sustainability.
Size & Fit
Regular fit with a little room to breathe—flattering without being tight. Runs true to size. Size Medium weighs approximately 8 oz (227 grams). Available in XS-2XL.
- XS (Size 2): Chest 32-33" / Waist 24-25" / Hip 34-35"
- S (Size 4-6): Chest 34-35" / Waist 26-27" / Hip 36-37"
- M (Size 8-10): Chest 36-38" / Waist 28-30" / Hip 38-40"
- L (Size 12-14): Chest 39-41" / Waist 31-33" / Hip 40-42"
- XL (Size 16-18): Chest 42-43" / Waist 33-35" / Hip 43-44"
- XXL (Size 20-22): Chest 44-45" / Waist 35-37" / Hip 44-45"
Care Instructions
Machine wash cold on gentle cycle with like colors. Use mild or wool-specific detergent like Nikwax Wool Wash. Tumble dry low. Store in an airtight container for extended storage. Never use fabric softener or bleach.
Complete Your Look
Layer over a Woolverino lightweight tank for high-output days, or pair with matching base layer bottoms for complete coverage. Explore our full merino wool collection for coordinating pieces across all weights.
Women's Woolverino Microweight Merino Wool Quarter Zip Base Layer
Lightweight warmth you can count on, without the risk of overheating. This women's merino wool quarter zip is built for cool mornings, late afternoon trail runs, or as a breathable layer under your ski jacket—and looks polished enough to wear on its own around town. Thumbholes keep sleeves in place and block drafts during active pursuits, while princess seams create a flattering, feminine silhouette that moves with you through every adventure.
Why You'll Love This Base Layer
- Core Spun Technology: 84% merino wool wrapped around a nylon core delivers the softness and temperature regulation of wool with enhanced durability, stretch, and recovery.
- Thumbhole Cuffs: Keep sleeves locked in place during layering and add warmth to your hands on chilly mornings.
- Princess Seam Design: Shaped, feminine fit that flatters without sacrificing freedom of movement.
- Ultra-Soft Fibers: 17.5 micron wool creates a luxuriously soft, itch-free feel against the skin.
- Light and Packable: Microweight 145 GSM construction (8 oz in size Medium) stuffs easily into a daypack for changing conditions.
- Thoughtful Details: Chest pocket, YKK semi-auto locking zipper with zipper garage, tagless construction, and flatlock seams for chafe-free comfort.
- UPF 20 Protection: Built-in sun protection for long days on the trail.
- Triple Certified: OEKO-TEX Standard 100, Woolmark, and Responsible Wool Standard certified for quality and sustainability.
Size & Fit
Regular fit with a little room to breathe—flattering without being tight. Runs true to size. Size Medium weighs approximately 8 oz (227 grams). Available in XS-2XL.
- XS (Size 2): Chest 32-33" / Waist 24-25" / Hip 34-35"
- S (Size 4-6): Chest 34-35" / Waist 26-27" / Hip 36-37"
- M (Size 8-10): Chest 36-38" / Waist 28-30" / Hip 38-40"
- L (Size 12-14): Chest 39-41" / Waist 31-33" / Hip 40-42"
- XL (Size 16-18): Chest 42-43" / Waist 33-35" / Hip 43-44"
- XXL (Size 20-22): Chest 44-45" / Waist 35-37" / Hip 44-45"
Care Instructions
Machine wash cold on gentle cycle with like colors. Use mild or wool-specific detergent like Nikwax Wool Wash. Tumble dry low. Store in an airtight container for extended storage. Never use fabric softener or bleach.
Complete Your Look
Layer over a Woolverino lightweight tank for high-output days, or pair with matching base layer bottoms for complete coverage. Explore our full merino wool collection for coordinating pieces across all weights.