Unlike cowhide, bison leather hides are not as stretched in the process, in order to preserve the unique grain pattern of the hide. This makes bison leather marginally thicker and stronger than cow leather. The real beauty of bison leather lies in the grain.

How much does bison leather stretch?

Buffalo leather has an epidermal layer up to three times thicker than cow hide which means that it is extremely strong and durable. The buffalo hides are not stretched during the tanning process, unlike cow hide, and therefore they are thicker and more resistant to tearing.

Does bison leather boots stretch?

Bison & Buffalo Leather vs Cow Leather

Also, bison leather/buffalo leather is not usually stretched during the tanning process.