Is this warm enough for winter hiking or skiing?

Yes, the midweight construction provides more insulation than lightweight base layers and is designed for cold-weather activity. The merino wool offers warmth even when damp, and the fabric breathes well during high-output efforts like ski touring or winter trail running.

Will the merino wool itch against bare skin?

Merino wool is naturally softer and less scratchy than traditional wool. The blend in this crew includes TENCEL and synthetic fibers that add smoothness and comfort for next-to-skin wear.

How should I care for this base layer?

Merino blends typically require gentler care than pure synthetics. Follow the garment's care label, but most merino-blend base layers do well with cold water washing and air drying or low heat in the dryer. Avoid fabric softeners, which can coat fibers and reduce wicking performance.

What's the fit like—should I size up for layering?

This is a fitted base layer designed to sit close to skin for optimal moisture management and layering under other garments. The elastane in the fabric provides stretch, so most people find their usual size works without needing to size up.

How does this compare to a synthetic base layer?

Merino blends like this one tend to regulate temperature better than pure synthetic base layers and resist odor longer between washes. Synthetic base layers often dry slightly faster and cost less, but many people find merino more comfortable for long days and multi-day trips.

Women's Basis PeakWool Midweight Crew LS

merino wool

The 3-second version

Merino wool blended with TENCEL, nylon and elastane for warmth and durability
Midweight construction balances insulation with breathability
Flatlock seams minimize chafing during high-output activity
Midweight—warmer than summer base layers
Fitted cut designed to sit close to skin
Requires size selection

Why it's on GiftsFeed

Long-Sleeve Merino Base Layer Crew Built for Cold-Day Breathability

Most merino base layers either pill and stretch out after a season or mix in so much synthetic fiber that they lose the wool's temperature regulation. This crew solves that trade-off by blending merino with TENCEL and nylon in a ratio that keeps the natural fiber performance intact while adding the abrasion resistance and recovery that pure wool lacks. The flatlock seams and thumbholes show attention to what actually irritates during a full day of layering. It's worth it if you've worn out softer merino shirts or found synthetic base layers clammy on long climbs.

Good gift when

People layering for cold-weather hikes or ski tours
Runners who train through winter mornings
Anyone who needs a base layer that breathes during hard efforts
Those who want merino warmth with added stretch and strength

Skip it if You prefer base layers that are lightweight enough for three-season use or need a loose fit rather than a next-to-skin cut

Specs

Fabric: Merino wool, TENCEL, nylon and elastane blend
Weight: Midweight
Seams: Flatlock construction
Features: Thumbholes, crew neck
Sizes: Extra Small, Small, Medium, Large, Extra Large
Colors: Magnet Heather, Mountain Shadow

If you're giving it

You'll need their size

Requires size selection; arrives in standard product packaging

The details

A base layer earns its place when it disappears under your outer layers but continues working through a full day of cold-weather activity. This long-sleeve crew sits next to skin and manages warmth and moisture without adding bulk or restricting movement. The fabric uses merino wool combined with TENCEL, nylon and elastane in a proprietary blend that balances natural fiber performance with synthetic resilience.

Merino delivers warmth even when damp and wicks moisture away from skin. The synthetic fibers add durability and stretch, so the shirt moves with you and holds up to repeated wear and washing. The result is a midweight layer that offers more insulation than a summer-weight technical tee without feeling stiff or heavy.

Flatlock seams lie flat against skin to reduce friction during high-output activity. Thumbholes at the cuffs keep sleeves in place when you pull on a jacket or midlayer, preventing gaps that let cold air reach your core. The crew neck stays close without binding, and the cut allows full range of motion for reaching, bending and layering under a pack.

This shirt works for winter trail runs, ski touring, cold-morning hikes and any outing where you need warmth at the start and breathability once you're moving. It dries quickly if you work up a sweat and regulates temperature as conditions shift. The fabric is soft against skin but built to handle abrasion from pack straps and outerwear.

Available in two colorways—Magnet Heather and Mountain Shadow—with sizes from extra small to extra large.

Stio

Women's Basis PeakWool Midweight Crew LS

Midweight fabric blends merino wool with resilient synthetics for strength and stretch

$149at stio.com

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Quantity

Buy from Stio

Ships and sold by Stio. About this merchant

The 3-second version

Merino wool blended with TENCEL, nylon and elastane for warmth and durability
Midweight construction balances insulation with breathability
Flatlock seams minimize chafing during high-output activity
Midweight—warmer than summer base layers
Fitted cut designed to sit close to skin
Requires size selection

Cheaper alternatives

Questions

Is this warm enough for winter hiking or skiing?: Yes, the midweight construction provides more insulation than lightweight base layers and is designed for cold-weather activity. The merino wool offers warmth even when damp, and the fabric breathes well during high-output efforts like ski touring or winter trail running.
Will the merino wool itch against bare skin?: Merino wool is naturally softer and less scratchy than traditional wool. The blend in this crew includes TENCEL and synthetic fibers that add smoothness and comfort for next-to-skin wear.
How should I care for this base layer?: Merino blends typically require gentler care than pure synthetics. Follow the garment's care label, but most merino-blend base layers do well with cold water washing and air drying or low heat in the dryer. Avoid fabric softeners, which can coat fibers and reduce wicking performance.
What's the fit like—should I size up for layering?: This is a fitted base layer designed to sit close to skin for optimal moisture management and layering under other garments. The elastane in the fabric provides stretch, so most people find their usual size works without needing to size up.
How does this compare to a synthetic base layer?: Merino blends like this one tend to regulate temperature better than pure synthetic base layers and resist odor longer between washes. Synthetic base layers often dry slightly faster and cost less, but many people find merino more comfortable for long days and multi-day trips.