Smartloft™ technology is the Merino wool solution to performance insulation—offering versatile warmth and breathability.
Circular Merino Insulation
We use scraps from our industry-leading Classic Thermal Base Layers to construct a 50% recycled wool interior that helps keep you warm and keep perfectly good materials out of landfills.
Circular Merino Insulation
We use scraps from our industry-leading Classic Thermal Base Layers to construct a 50% recycled wool interior that helps keep you warm and keep perfectly good materials out of landfills.
Let’s talk layers.
Smartloft™ gear can be worn as an insulating mid-layer under a under a shell or as a packable outer layer in friendlier conditions. Pair your Smartloft™ apparel with a Smartwool base layer to create a performance-focused kit that works with your body as you move—providing warmth you don’t need to shed.
Free Return Policy Smartwool is offering an extended free returns window through 1/31/27 for orders placed from 11/1/26-12/31/26. Items much be unused, unwashed and unaltered.
Store Returns Return the unworn item(s) to the store where you originally made the purchase for a refund or exchange.
Online Returns Return unworn item(s) purchased at smartwool.com 30 days from the date of purchase for a complete refund. Initiate a return by accessing your order history and selecting “Return Items."
Refunds may take up to 3-5 weeks to process due to the time often required for shipping and bank processing. Exchanges are not available.
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Free Shipping
Free standard shipping on orders $74+
Offer is valid for Canada including PO Box addresses. Delivery days are Monday-Friday, excluding Canadian federal holidays. Free shipping may not be available for some customers.
