The Updraft X2 from Chaco provides superior support and adjustability and is raring to go right out of the box. Strong, quick-drying polyester pull-through strap system to help provide a secure and comfortable fit with less bulk and confusion. Sculpted XO3 LUVSEAT™ platform offers 20% weight savings over traditional Chaco sandals without sacrificing any support, comfort, or durability. Super lightweight shaped polyurethane footbeds boast ergonomic support posts. Water-ready Vibram® Bulloo non-marking rubber outsoles feature 2-3mm lugs for low-profile, slip-resistant grip. Machine washable.