SEATTLE , 2016-Jul-04 — /EPR Retail News/ — To celebrate the 100th birthday of the National Park Service (NPS), REI is offering its members and customers a collection of limited-edition NPS-branded gear from a variety of outdoor brands. Commemorative products include packs, tents, trekking poles, hammocks, patches and T-shirt from REI, Osprey, CamelBak, ENO, Pendleton,…