The V-Trek Insulated Keeps Your Feet Warm, Even As The Temperatures Drop. With A 360° Fleece Lining For Warmth, And A Non-Absorbent Water Shedding Shell, It’S Designed To Keep You Exploring In Wet, Dry, And Cold Conditions. It’S More Comfortable And Flexible Than Previous Insulated Fivefingers, Due To The Brushed Toe Fabric And Soft Fleece Lined Collar, Tongue And Quarter Panels. It Features A Protective Film On Top Of And In Between The Toes For Added Protection, While Water Shedding Is Facilitated By The Non-Absorbent Hypatex Overlay Braces. vibram five fingers