Our Sonder model is inspired by authentic, special, and unique people who understand that everyone has their own essence, with different needs, thoughts, emotions, and feelings. Do you consider yourself a Sonder? Upper made of premium suede and vegetable-tanned leather. Tongue panel in recycled leather and polyester. Lining is 100% vegetable-tanned leather: breathable and hypoallergenic. Recycled rubber sole (up to 70%). Removable insole in recycled latex and covered with vegetable-tanned leather. Cotton laces and packaging in 100% recycled cardboard.