ALL-NEW RENEW. The Chuck 70 is built off the original 1970s design, now with more recycled content. A 100% recycled plain weave and ripstop upper comes together with 100% recycled linings and laces. 10% recycled grind rubber foxing and toe cap emphasize the point. A 12% grind rubber outsole made from factory scraps completes the look, making the entire shoe over 20% recycled content by weight. Renew what you do.