Smartwool merino hiking socks

This guide lists 49 Smartwool models. 43 of the 49 are merino socks, with 50 to 74% merino. Choose a model, then use its size chart.

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Smartwool sock sizing

The lookup includes unisex and kids’ charts. Match the chart to the exact model, then check the heel and toe fit in your footwear.

Unisex: Use the range for your model. Smartwool gives no rule for between sizes: try both sizes with your boots and check heel position and toe room.

Kids’: Kids’ US and UK sizes run from toddler sizes into youth sizes, so this lookup reads the EU column; the whole table is shown as printed.

Open the brand size lookup. See the fit checklist for heel position, toe room and cuff clearance.

Wash and dry Smartwool socks

Smartwool’s hiking socks in this guide allow gentle washing in warm or cool water and low tumble drying. Do not bleach, iron or dry clean.

A different instruction on the exact sock takes precedence over general brand guidance. Use the care lookup and your own drying estimate in the rotation planner.

Guarantee and return checks

Smartwool’s UK shop honours the statutory two-year guarantee for faults: a pair that arrives damaged, or develops a manufacturing or material fault within two years of purchase. Wear and tear is not a fault. Claim through the Contact Us form on the shop; an approved claim is refunded.

Smartwool’s UK shop takes free returns within 30 days of purchase; socks must be unused, unwashed and unaltered. It does not exchange, so order the other size separately.

Separate the guarantee from store returns.

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