A gym bag is a type of carryall or duffel bag that is specifically designed to hold and transport items needed for exercising, working out at a fitness center or engaging in sports. It usually has multiple compartments, pockets and pouches to organize clothing, footwear, water bottles, towels, gym accessories such as weights, resistance bands, yoga mats etc., and other personal items like keys, wallet, phone or energy bars. The bag is made of durable materials that can withstand the wear and tear of daily use while also being lightweight enough for easy carrying.