Alchemy Goods made this great belt out of recycled inner tubes. It is made out of inner tubes so it is black rubber, and it has whiteish stitching with a removable steel buckle. The belt stretches a bit so it keeps your pants fitting well even when you are riding your bike.
90% recycled by weight
1 1/4" wide
Available in XS 22-24", S 24-30", M 30-36", L 36-40", XL 40-46", XXL 46-50"