The Katabatic has quickly become one of Oboz&';s most popular hikers and the new Katabatic LT takes the collection to a new level in a lighter package with improved performance and additional environmentally friendly materials. From fast packing to day hiking the Katabatic LT is the shoe of choice. This boot is not waterproof, to give you that extra venting - perfect for the desert and summer hikes. Fit Oboz uses gender-specific lasts to address the anatomical nuances between different types of feet. Length runs true to size. Form hugging heel cup, sculpted mid-foot, and a generous forefoot & toe box. Specs WidthStandard - Women&&';;s standard width is B in the heel and C in the forefoot (according to Brannock DeviceA(R)). Patterns and materials in a given model may influence fit. We always recommend trying our footwear on to ensure the best possible fit.VolumeStandard Shoe - Medium volume feet tend to be standard width with some combinations of high and/or low arches and a high and/or low instep.Upper Material100% Recycled Polyester Mesh with TPU Hotmelt OverlaysTPU Reinforced Toe CapWeight10.6 oz / 301 gramsHeel Drop8 mm