Save 20% on any full priced item at Eastern Mountain Sports. Must be a member to use and if you're not, no worries, using this great coupon code will auto-enroll you into their membership program. See site for full details! 1. Copy this promo code: WELCOME to use online. 2. or Tap "Use Coupon" button below to view In-Store Coupon and follow directions on coupon to use in-store.