Smartwool Classic Thermal Merino Base Layer Crew
The Smartwool Classic Thermal Merino Base Layer Crew is one of those pieces that belongs in just about every skier's layering setup. Made entirely from Merino wool, it delivers dependable warmth, natural breathability, and the kind of next-to-skin comfort that makes a noticeable difference when you're spending hours outside in the cold.
The 250 g/m² interlock-knit fabric provides substantial insulation without the bulk of a traditional fleece. Merino wool naturally regulates temperature, manages moisture, and resists odors, helping you stay comfortable as conditions and activity levels change. Whether you're working up a sweat on a demanding run or sitting through a freezing chairlift ride, the fabric helps maintain a comfortable balance between warmth and breathability.
The slim fit follows the contours of your body, making it easy to layer underneath a fleece, insulated midlayer, or ski jacket. Flatlock seams and strategically offset shoulder and side seams help minimize rubbing and irritation, especially when you're wearing multiple layers or carrying a backpack.
There's nothing particularly complicated about a great Merino wool base layer, and that's exactly the appeal here. It's warm, comfortable, versatile, and easy to incorporate into just about any cold-weather setup. If you're building a dependable layering system for skiing or snowboarding, this is a great place to start.
Tech Specs
Care Instructions
Shipping Information
We aim to dispatch all orders within 2 business days, and in most cases your order will be boxed and shipped within 24 hours. Rest assured, if you've received your order confirmation email, our team is working hard to get your order to you as quickly as possible. If you have any questions, please visit our FAQ page or contact our customer service team.
Orders will be shipped out of the nearest location to you with the item(s) ordered in stock.
For more information on estimated transit times and shipping costs click here.
Return Policy
All returns must be made within 90 days of your purchase date and must be in new condition (tags attached, unused, unwashed, and unworn).
We will provide a return label on items being returned with a purchase price of $250 or more, please contact us if your return meets this criteria.
To read our full return policy click here.