The Escalante was such a hit that it's hard to imagine it getting better, but believe it or not, it did! The 1.5 version features an updated knit with 360 degree reflectivitity, increased breathability, tongue stay, new color patterns and sleeker heel cup. This new upper coupled with that same powerfully plush feeling of Altra EGO™ underfoot creates the perfect combo of high performance and comfort.? Heel toe drop: 0mm