Give Merino 30 Days. Trust Us. Most people keep it. But hey, returns are cool too.

(*) The 30-day Wear Test is valid on selected Merino wool styles – for both men and women from 26/03/2026 to 28/05/2026. The 30-Day Wear Test is only applicable to identified products purchased directly from Smartwool websites at www.smartwool.eu and smartwool.co.uk. The 30-Day Wear Test commences upon delivery of goods to consumer and concludes exactly 30 calendar days thereafter. In the event that a consumer is dissatisfied with a qualifying product, they must contact Smartwool’s customer service before the end of the 30-Day Wear Test to initiate a full refund as follows: registered users can access the "Return" section of their user dashboard and manage return requests; unregistered users must complete the form at the “Guest” section. Qualifying 30-Day Wear Test products may be worn, but must be returned in all their parts. Important Restrictions: 30-Day Wear Test is not applicable to similar qualifying products purchased before 26/03/2026 of the 30-Day Wear Test. The initiative is available for a limited time only and subject to change without notice. By purchasing a product under the 30-days-wear test program, the Customer agrees that our Customer Care team may contact them, using the contact details provided at the time of purchase, in order to request feedback regarding the purchased product and/or to better understand the reasons for a return. This communication is solely intended to improve the quality of our products and services and does not serve any promotional purpose.