pannier

This term describes specialized luggage designed for external attachment to a vehicle or animal. In modern cycling and motorcycling contexts, it refers to heavy-duty bags that clip onto a rack, emphasizing utility and long-distance travel. The term carries a connotation of preparedness and adventure, often associated with touring or commuting.

Historically and in agricultural contexts, the word refers to the traditional baskets slung across the backs of pack animals. Because these are almost always used in pairs to maintain balance on the animal's spine, the word is frequently encountered in the plural form.