<!--ProdInc[170086445]/Mall:[rei_US]--> Wet the Swamp Cooler tech in the chest panel for an evaporative cooling effect that disperses heat from the dog''s core To tap into the Swamp Cooler tech, soak in water, zip on your dog and go Lightweight spandex back panel is rated to UPF 50+ and provides shade Formfitting with a zippered closure to keep the cooling effect close to the body Oversize armholes allow full range of motion 3-layer construction cools the core Wicking outer layer reflects heat and facilitates evaporation Absorbent middle layer stores water for evaporation Mesh lining helps keep dog dry and comfortable YKK VISLON zipper Polyester meshes (shell and lining) are bluesign approvedImported. Technical specs <table border=1 cellpadding=5 style=''border-collapse: collapse;''><!--[--><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Best Use</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>Running</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Material(s)</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>Main: nylon/spandex blend; polyester</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Fits Chest</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>XXS: 13-17 inches</p><p class=''tech-specs__value'' data-v-fc44804c=''''>XS: 17-22 inches</p><p class=''tech-specs__value'' data-v-fc44804c=''''>S: 22- <a href=''https://www.rei.com/product/205491/ruffwear-swamp-cooler-zip-dog-vest?colorId=174822'' target=_blank><img src=''https://www.antpop.co.kr/antMain/AntImgView?CustID=jellymom2&MallKind=US&MallID=rei&ProdInc=170086445&MallIDEncodeYes=0&SiteName=PostSelf'' width=''100px'' height=''20px'' border=0></a>