US Patent 11504566 Modular handheld weight training apparatus and closure system

A modular weight training bag system, made up of a main bag constructed of heavy pliable fabric with a zipper-less closure, an inner lining that holds a granular material which adds weight and volume to the main bag, and also has a uniquely designed closure, using various size pouches to increase weight, an add-on weight attachments installed on the main bag for the purpose of quickly increasing the weight of the bag, a capsule sleeve for securing two main bags together, and a soft shell constructed to cover the main bag or capsule sleeve.