Bottega Venetas Astaire slippers are defined by the signature Knot hardware adorning the vamp. Theyre made from leather and have moccasin-inspired stitching and an easy, backless silhouette. brbrLower-Impact Materials. This product is made using at least 50% lower-impact materials or ingredients. Find out more about our NET SUSTAIN criteria a href=https://www.net-a-porter.com/en-gb/campaigns/net-sustainhere./a