How does the waistband perform under a heavy pack belt?

The 1 1/4 inch woven sport elastic waistband sits entirely flat against your skin. This flat construction prevents the band from rolling down, twisting, or folding when compressed beneath heavy backpack hip straps or a climbing harness. It distributes pressure evenly across your hips to eliminate deep skin indentations and painful pressure sores during long wilderness treks.

Will the fabric stretch out and sag after a long workout?

No. While pure wool can stretch over time, this specialized fabric incorporates Spandex alongside a core-spun nylon filament. The leg openings and supportive pouch dynamically stretch with your body during explosive movements and immediately snap back to their original snug shape without bagging out or losing support.

Do these briefs protect against heat rash and friction?

Yes. The microweight jersey knit pulls liquid moisture away from your high-heat zones and spreads it thin across the fabric surface for rapid drying. Keeping the skin dry reduces the friction that causes inner-thigh chafing and heat rashes.

How durable is the thin fabric in high-friction zones?

Ultra-lightweight underwear is often prone to premature wearing in the gusset and crotch. We solved this structural vulnerability by spinning the soft 17.5-micron Merino fibers entirely around a durable nylon thread core.

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Everyone has an underwear preference. Especially based on the activity you're doing. Sometimes you just don't need the extra fabric when you're on the move. Complete your collection with our Woolverino Brief for when you want to keep it simple.

Fabric

Fiber Content: 84% Merino Wool, 12% Nylon, 4% Spandex
OEKO-TEX® STANDARD 100 Certified
Woolmark® Certified
Knit: 145 g/m² Micro Weight Jersey Knit
Microns: 17.5 Micron Fibers
UPF Rating: 20
Total Easy Care: Machine Wash and Dry
Responsible Materials: Wool is naturally PFAS-free. Our garments are made with no intentionally added PFAS.
Wool Source: Australia
Imported.

Features

Brief Style: Cut higher on the leg for extra range of motion
Waistband: 1 1/4 inch woven sport elastic waistband helps keep everything in place
Flat Lock Seams: Prevents Chafing
Runs True to Size
Weight: Size Large = 2.4 oz. (68 grams)
Style #: 1113

Uses

Ideal Seasons: Spring, Summer, Fall, Winter
Activities: Everyday Wear, Hiking, Camping, Biking, Running, Fishing, Hunting, Snowsports
Temperature Recommendations: 30°F and up while active, 60°F and up while inactive - Learn more about Merino wool fabric weights

Care

Washing and Drying Instructions - Learn more about wool care

Turn Inside Out
Machine Wash Cold: Gentle cycle with like colors
Detergent: Mild or wool-specific
Tumble Dry: Low heat
Storage: Place in an airtight container when not in use for long periods of time
Do NOT Use: Fabric softener or bleach!

Product Story

Woolverino

Woolverino's Core Spun Technology brings you a merino garment that is durable, athletically fitted and high-performing. Warm when you need it. Cool when you don't. It's Nylon inner core offers strength, elasticity, resiliency, and durability. Merino Wool outer sheath provides insulation, moisture-wicking, and UV protection.

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