29% off Product Description Layer up before your workouts or on days in between with this prAna half-zip. The luxurious rib TENCEL(TM) modal blend fabric is soft and comfy. The relaxed fit makes it easy to wear any day of the week. prAna Women's Willow West Half-Zip Blue S at REI.com $62.73$88.00 29% Discount You save $25.27 Buy Now Check Price on Amazon Check Price on eBay