*$25 / £25 / €25 Smartwool gift card code is valid on a $50+ / £50+ / €50+ purchase at Smartwool.com, Smartwool.ca, or Smartwool.eu. Code expires April 30, 2021. Employees of Smartwool or Strava are not eligible. Offer cannot be combined with other promotions or discounts. Full terms and conditions: https://www.smartwool.com/offer-terms/strava-challenge.html