Home Slickdeals $34.83 At REI: REI Co-op Flash Insulated Vest – Men’s. Slickdeals $34.83 At REI: REI Co-op Flash Insulated Vest – Men’s. By ARCOM - 28 August 2022 60 0 SHARE Facebook Twitter Go to the deal page: $34.83 At REI: REI Co-op Flash Insulated Vest – Men’s.