When the dog needs to stretch its legs or we want to explore our favorite trails while they are covered in snow we rock the Icebug Ivalo 4 BUGrip Winter Boot. This boot offers durability and warmth that never holds us back, but the key to these boots is the BUGrip outsole. This outsole uses carbide steel tip studs to bite into packed snow and ice so that we stay upright and moving forwards. Responsible Collection: bluesign® APPROVED, Recycled/Repurposed Upper Material: 100% recycled polyester ripstop Insulation: 100% recycled polyester Lining: 100% recycled synthetic fleece Closure: zipper