I live on a horse. You wouldn't believe me if I told you that the next major improvement came almost one thousand years after my invention. And, oddly enough, I came thousands of years after the invention of another.

I wear a crust but am not bread, I’m cool and sweet instead. My center’s smooth like velvet cream, At parties I’m a dessert dream.

Wrapped around legs and those without, Those in the wet want to avoid me, and those in the dry may seek me out. Mesh or rope, soft or rough, Sometimes I’m fragile, and sometimes I’m tough. To some I may accessorize, But to others I bring their demise

I’m offered freely, asked or not, defended fiercely quite a lot. I may be strong, or quickly bend, depending on the mind I’m in.

It's like library but instead of checking out librs, you check out birds.