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M's Classic Thermal Merino Base Layer Crew
Description
Smartwool Men's Classic Thermal Merino Base Layer Crew
The Smartwool Men's Classic Thermal Merino Base Layer Crew is a premium cold-weather foundation layer built for serious outdoor pursuits. Crafted from 100% Merino wool, this updated fan favorite delivers exceptional warmth, breathability, and moisture management — making it an ideal base layer for skiing, hiking, climbing, and cold-weather biking.
Merino wool is renowned for its natural thermoregulating properties, keeping you warm when temperatures drop and wicking moisture away from the skin when activity levels rise. Unlike synthetic base layers, Merino fibers resist odor naturally, allowing for extended wear across multi-day adventures without the need for frequent washing.
This updated version features a refined fit designed to improve both functionality and aesthetics. Shoulder panels eliminate top shoulder seams for a cleaner profile and reduced bulk under outerwear, while flatlock seam construction minimizes friction and helps prevent chafing during high-output activities. The crew neck design provides added coverage and warmth around the neck without restricting movement.
- 100% Merino wool construction for natural warmth and breathability
- Flatlock seam construction to reduce chafing and skin irritation
- Shoulder panels that eliminate top shoulder seams for improved fit
- Natural odor resistance for extended multi-day wear
- Moisture-wicking performance to keep skin dry during aerobic activity
- Crew neck design for added warmth and neck coverage
- Updated fit for enhanced comfort and layering versatility
Whether worn as a standalone piece or layered beneath a mid-layer and shell, the Smartwool Classic Thermal Merino Base Layer Crew is a versatile cold-weather essential for any active winter wardrobe.
Return Policy
Sale items can be returned for store credit only. We cannot accept returns on gift cards.
Regular Priced (Non-Sale) Items can be returned within 14 days of delivery for a full refund to your original method of payment. If the original method of payment is unavailable, we’ll issue your refund in the form of store credit.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.