Can I wear these on their own or do they need to be layered?

These are designed as a base layer and work best under outer layers. The lightweight fabric provides moisture management and thermal regulation but not standalone insulation in cold conditions. They're built to be the foundation of a layering system for winter activities.

How does the merino blend handle odor compared to all-synthetic tights?

Merino wool has natural antimicrobial properties that resist odor buildup across multiple wears, unlike all-synthetic fabrics that tend to hold smell. The blend gives you that odor control while adding the durability and stretch of synthetic fibers.

Will these tights bunch or ride up under ski pants?

The flatlock seams lie completely flat and the low-profile waistband is designed to slide smoothly under outer layers without bunching. The four-way stretch fabric moves with you and maintains its shape, so it stays in place during high-output activity.

How do I choose between the regular inseam?

The product is available in a regular inseam option. Fit will depend on your height and leg length. If you're between sizes or have longer legs, consider how the inseam will sit with your boots or outer layers.

Women's Basis PeakWool Lightweight Tight

merino wool

The 3-second version

Merino and synthetic blend manages moisture and resists odor
Flatlock seams and low-profile waistband prevent chafing
Single-knit fabric layers under shells without bulk
Base layer only—needs outer layers for insulation
Contains wool (merino blend)
Close fit may feel restrictive if you prefer loose baselayers

Why it's on GiftsFeed

Merino-blend base layer tights built for layering under winter gear

Most base layer tights either go all-synthetic and smell like a locker room by day two, or go full merino and sag at the knees after a few hard days. A blend splits the difference: you get wool's ability to regulate temperature and resist odor across multiple wears, plus the durability and recovery of synthetic fibers that hold their shape. The flatlock seams and minimal waistband matter when you're layering under a harness, hip belt, or tight-fitting shell—ridges and elastic bulk turn into hot spots fast. This is for people who actually move hard in cold weather and need a foundation that manages sweat, not just insulation.

Good gift when

Backcountry skiers who need a base layer that breathes under a shell
Winter hikers layering for variable conditions and high output
Climbers starting before dawn in cold temperatures
Anyone who wants merino performance without heavyweight fabric

Skip it if If you prefer a completely plant-based or synthetic base layer, or if you need insulated tights rather than a moisture-wicking foundation piece, these are built to work as part of a layering system and won't provide standalone warmth in deep cold.

Specs

Fabric: PeakWool Lightweight (merino wool and synthetic blend)
Construction: Single-knit
Seams: Flatlock
Waistband: Low-profile, smooth
Inseam Options: Regular
Sizes: XXS, XS, S, M, L, XL, XXL
Colors: Mountain Shadow Heather, Abyss

If you're giving it

You'll need their size

Requires knowing size, inseam length, and color preference.

The details

These tights are designed to vanish beneath a shell or ski pants, delivering warmth and moisture control without adding layers of bulk. The fabric is a single-knit construction that blends merino wool with synthetic fibers, bringing together the temperature regulation and odor resistance of natural fiber with the stretch and resilience of modern textiles.

The waistband sits low and smooth against your hips, avoiding pressure points when you buckle a pack belt or tighten a ski boot. Flatlock seams lie completely flat, so there's no ridge to rub when you're moving hard or wearing multiple layers. The result is a tight that works as a foundation for winter pursuits—climbing, backcountry skiing, alpine starts—where cold is a given and sweat management matters as much as insulation.

The blend handles moisture actively, moving vapor away from skin and drying faster than cotton or heavier wool. Merino's natural antimicrobial properties keep odor in check across multiple wears, and the synthetic component adds durability and shape retention. The fabric stretches in four directions, so it moves with you whether you're skinning uphill or stepping high through deep snow.

Available in two inseam lengths and seven sizes, these tights fit close to the body without constriction. They slide easily under shells, softshells, or insulated pants, and the lack of bulk means they don't bunch at the knee or ankle. A cold-weather base layer that does its job without announcing itself.

Stio

Women's Basis PeakWool Lightweight Tight

Single-knit fabric blends natural wool and synthetic fibers for warmth without bulk

$109at stio.com

Choose an option

Quantity

Buy from Stio

Ships and sold by Stio. About this merchant

The 3-second version

Merino and synthetic blend manages moisture and resists odor
Flatlock seams and low-profile waistband prevent chafing
Single-knit fabric layers under shells without bulk
Base layer only—needs outer layers for insulation
Contains wool (merino blend)
Close fit may feel restrictive if you prefer loose baselayers

Questions

Can I wear these on their own or do they need to be layered?: These are designed as a base layer and work best under outer layers. The lightweight fabric provides moisture management and thermal regulation but not standalone insulation in cold conditions. They're built to be the foundation of a layering system for winter activities.
How does the merino blend handle odor compared to all-synthetic tights?: Merino wool has natural antimicrobial properties that resist odor buildup across multiple wears, unlike all-synthetic fabrics that tend to hold smell. The blend gives you that odor control while adding the durability and stretch of synthetic fibers.
Will these tights bunch or ride up under ski pants?: The flatlock seams lie completely flat and the low-profile waistband is designed to slide smoothly under outer layers without bunching. The four-way stretch fabric moves with you and maintains its shape, so it stays in place during high-output activity.
How do I choose between the regular inseam?: The product is available in a regular inseam option. Fit will depend on your height and leg length. If you're between sizes or have longer legs, consider how the inseam will sit with your boots or outer layers.