<!--ProdInc[170088116]/Mall:[rei_US]--> Applying 20 years of design experience, EXOspikes combine the approachable and durable material set of NANOspikes with the secure fit and superior traction of MICROspikes Durable thermoplastic polyurethane Traction Matrix fully engages frozen and mixed terrain, with an open design that sheds snow and adapts to a range of flexible footwear Designed to take a beating, TPU Traction Matrix is more lightweight and abrasion resistant than steel Twelve 0.29 in. integrated spikes per foot provide 3 levels of traction Aluminum steps grip uneven surfaces while TPU lugs dig into loose terrain and tungsten carbide tips bite into ice and packed snow New elastomer harnesses optimize fit and remains stretchy to -22°F (-30°C) TPU inserts reinforce key stress points and keep the toes securely in place Raised heel tabs provide easy on/off access Tote sack included These are 40% lighter than the award-winning Kahtoola MICROspikes footwear tractionImported. 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=''''>Trail Running</p><p class=''tech-specs__value'' data-v-fc44804c=''''>Hiking</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=''''>Harness: elastomer; traction: thermoplastic polyurethane/aluminum/tungsten carbide</p><!--]--></ <a href=''https://www.rei.com/product/178099/kahtoola-exospikes-traction-system?colorId=350'' target=_blank><img src=''https://www.antpop.co.kr/antMain/AntImgView?CustID=jellymom2&MallKind=US&MallID=rei&ProdInc=170088116&MallIDEncodeYes=0&SiteName=PostSelf'' width=''100px'' height=''20px'' border=0></a>