How does the waistband handle pressure from heavy backpack straps and hip belts?

Standard underwear waistbands frequently bunch up or flip over when compressed by the heavy, padded hip belts of expedition packs. Our sport elastic band is structurally woven to distribute tension across a wide surface area rather than a narrow line.

Why is a core-spun fiber blend better for active briefs than pure wool?

While pure wool excels at temperature regulation, it can temporarily lose its elastic recovery when completely saturated with sweat, causing the fabric to stretch out and sag during a workout. Our core-spun technique wraps natural wool around a central synthetic nylon anchor filament.

Will the inner liner panel stay dry during high-output summer activities?

Synthetic active underwear relies on plastic fibers that pool liquid sweat on the surface, keeping cold moisture trapped directly against your body. The microweight jersey knit features fine 17.5-micron merino fibers that immediately absorb moisture vapor away from the skin surface and disperse it outward for rapid evaporation.

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Our Woolverino Women's Bikini is here to become your new go-to pair of underwear. Our new Micro weight blend brings you underwear that is breathable, moisture-wicking, and durable for a variety of activities and everyday wear. This bikini is designed to have full rear coverage, with an elastic waistband to help everything stay in place. Because the last thing you should be worried about is your underwear.

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

Bikini Style: High cut leg opening for better range of movement, high coverage back
Waistband: 1-inch woven sport elastic waistband helps keep everything in place
Flat Lock Seams: Prevents Chafing
Runs True to Size
Weight: Size Medium = 0.05 lbs. (23 grams)
Style #: 2303

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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