REI Powerstretch Women’s Vest for $28.73. Select in-store pickup at REI to save on shipping. Otherwise shipping is $5.99 for a total $34.72 shipped or free for orders over $50. If needed, use this Filler Tool to qualify for free shipping. Here is a screenshot for your reference. The vest is made of polyester/nylon/spandex fabric, and features 4-way stretch, and nylon outer face.