Microweight Men's Wool 1/4 Zip Woolverino

Ultralight Merino Performance with On-Demand Ventilation: The Men’s Woolverino Microweight 1/4 Zip

Built for active days when temperatures and effort levels can change quickly, the Men’s Woolverino Microweight 1/4 Zip combines ultralight merino performance with the versatility of an adjustable mock neck. Zip it up when the air turns cool or you want extra neck coverage, then open it when your pace picks up and you need additional ventilation.

The 145 g/m² Woolverino fabric blends fine Australian merino wool with a durable nylon core and added stretch, creating a lightweight base layer designed for hiking, running, camping, travel, and year-round outdoor use.

Thoughtful Design & Materials

Woolverino Core-Spun Construction: Merino wool surrounds a durable nylon core, combining the natural performance of wool with added strength, resilience, and longevity.

84% Merino Wool: A high merino content provides natural temperature regulation, breathability, moisture management, and odor resistance.

Nylon & Spandex Blend: 12% nylon adds durability while 4% spandex provides stretch and helps the garment move comfortably with you.

Microweight Jersey Knit: At just 145 g/m², the fabric provides lightweight coverage without the bulk and insulation of heavier merino layers.

Fine 17.5-Micron Fibers: Exceptionally fine merino fibers create a soft next-to-skin feel suitable for long days of active wear.

Certified Merino Performance

OEKO-TEX® STANDARD 100 Certified: Tested according to OEKO-TEX standards for harmful substances.

Woolmark® Certified: Meets established Woolmark standards for wool quality and performance.

Responsible Wool Standard® Certified: RWS certification supports responsible animal welfare and land-management practices throughout the wool supply chain.

Australian Merino Wool: Made using wool sourced from Australia.

UPF 20 Protection: Provides additional ultraviolet coverage for exposed outdoor activities.

Adjust Your Coverage as Conditions Change

1/4-Zip Mock Neck: Zip the neckline up for extra coverage in cool or breezy conditions, then open it to release excess heat during higher-output activity.

YKK Semi-Auto Locking Zipper: Designed to stay securely positioned while providing quick ventilation when needed.

Zipper Garage: Places fabric between the zipper and your skin for greater comfort around the neck and chin.

Versatile Neck Coverage: The mock neck can also provide an additional physical barrier around the neck during buggy outdoor conditions.

Made for High-Output Adventures

Light & Packable: The microweight construction takes up minimal space in a pack, making it an easy layer to carry when conditions are uncertain.

Flatlock Seams: Smooth seam construction helps minimize rubbing and chafing during repetitive movement.

Tagless Label: Eliminates a traditional neck tag for more comfortable extended wear.

Regular Fit: Provides a standard fit with enough room to move comfortably without becoming overly loose.

Base-Layer Design: Wear it directly against the skin or beneath additional layers as temperatures drop.

Natural Comfort Across the Seasons

Temperature Regulation: Merino wool helps balance body temperature as weather and activity levels change.

Moisture Management: Wool fibers absorb moisture vapor from the skin and release it into the surrounding air, helping you remain more comfortable during active pursuits.

Naturally Odor Resistant: Merino helps resist odor buildup, making the top particularly useful for travel and multi-day adventures.

Breathable Warmth: The lightweight fabric provides coverage without trapping the amount of heat associated with heavier base layers.

Four-Season Versatility: The microweight construction can function as a standalone top in warmer weather or become the foundation of a more substantial layering system when temperatures fall.

Product Details

• Product Type: Men’s Microweight Merino Wool 1/4-Zip Base Layer

• Fiber Content: 84% Merino Wool, 12% Nylon, 4% Spandex

• Wool Source: Australia

• Construction: Woolverino Core Spun

• Knit: 145 g/m² Microweight Jersey

• Fiber Diameter: 17.5 Microns

• UPF Rating: 20

• Certifications: OEKO-TEX® STANDARD 100, Woolmark®, Responsible Wool Standard®

• Neckline: 1/4-Zip Mock Neck

• Zipper: YKK Semi-Auto Locking

• Zipper Garage: Yes

• Seams: Flatlock

• Label: Tagless

• Layer Type: Base Layer

• Fit: Regular

• Sizing: Runs True to Size

• Weight: 8.8 oz / 249 g, Size Large

• Style #: 744

• Imported

Best Suited For

• Hiking

• Backpacking

• Camping

• Running

• Biking

• Fishing

• Hunting

• Snowsports and layering

• Travel

• Everyday active wear

Temperature Recommendations

• Active Use: Approximately 30°F and above

• Inactive Use: Approximately 60°F and above

Actual comfort will vary based on activity level, additional layers, weather conditions, and individual temperature tolerance.

Care Instructions

• Turn inside out before washing

• Machine wash cold on gentle cycle with like colors

• Use mild or wool-specific detergent

• Tumble dry on low heat

• Do not use fabric softener

• Do not use bleach

• Store in an airtight container during extended periods of non-use

One Lightweight Layer for Changing Conditions

The Men’s Woolverino Microweight 1/4 Zip is built for the days when conditions refuse to stay consistent. Fine merino helps regulate temperature and moisture, the Woolverino core-spun construction adds durability and stretch, and the quarter zip gives you a quick way to adjust ventilation without changing layers. Lightweight enough for warm-weather adventures and versatile enough to disappear beneath winter insulation, it's an easy piece to keep in your kit throughout the year.