ASICS Men's Gecko XT Trail Running Shoes The gecko XT focuses on bringing a heightened experience to the trail with exceptional grip. With an aggressive highly tacky outsole compound, RCR, the sole pattern has been given more tread depth and a purpose driven layout. Underfoot, a natural last has been used to give both a better trail feel, more comfortable toe play and wider base nets. Coupled with full ground contact the spider will make you feel like you have 8 legs on the ground.