The KFC paper bucket, an iconic staple of the fast-food landscape, is also a keen solution to take-out fried chicken. It allows air to circulate, traps some heat in, and the vented top allows condensation to escape, keeping the chicken dry and crispy. They’ve also successfully managed to avoid styrofoam entirely.

Though the red and white buckets have become as much a symbol for the chain as the Colonel himself, we have Dave Thomas of Wendy’s fame to thank for the innovation in food packaging. Before slinging never-frozen square patties, Thomas was a KFC franchisee and developed the bucket in 1962.

The fried chicken chain isn’t done innovating either, with their latest development focused on sustainability.