The Bulgarian Bag was invented by Ivan Ivanov. Ivanov, a former Bulgarian Greco-Roman Olympic athlete, was working as a U.S. Olympic Greco-Roman wrestling coach and was looking for a training tool that would allow his wrestlers to improve explosive dynamic movements in pushing, twisting, swinging, rotating, squatting, lunging, throwing and lunging.

Features:
- Made from synthetic leather outer with a flock fill inner
- Easy to use
- Portable and can be used virtually anywhere
- Time efficient workouts
- Requires no additional tools, attachments, or set up
- Develops muscular strength and endurance
- Increases flexibility and mobility
- Increases metabolic rate
- Develops mental toughness
- Can be as a free weight in various, simple and dynamic movements
- Ideal for adding to your strength and plyometric weight training