Unfilled Punch Bags | Fillable Heavy Bags for Boxing, MMA & Muay Thai

Unfilled Punch Bags (Shipped Empty) 

Build your perfect heavy bag setup without paying to ship a bag full of filler. Our unfilled punch bags arrive empty, so you can choose the exact weight, feel, and firmness for your training—whether you’re working boxing combinations, MMA striking, or Muay Thai kicks, knees, and elbows.

Choose from classic bag shapes (depending on the variant you select):

• Muay Thai “banana” bag: ideal for low kicks, body kicks, knees, and long combinations
• Standard heavy bag: the all-rounder for punches, hooks, uppercuts, and power rounds
• Teardrop / uppercut bag: great for angles, uppercuts, and tight combinations
• Compact heavy bag: perfect for home gyms or lighter swing setups

Why buy an unfilled punch bag?

1. Lower shipping costs: empty bags are cheaper to deliver than pre-filled bags
2. Custom weight & feel: pack it softer for technique or heavier for power
3. Replace filler anytime: refresh the feel without buying a new bag
4. Easier setup in apartments/home gyms: you control final weight for your mounting point
5. Better value long-term: one bag, multiple training “feels” over its lifespan

Training benefits (Boxing, MMA & Muay Thai)

Build conditioning with timed rounds (2–5 minutes)

Improve accuracy, rhythm, and footwork with combination drills

Develop power safely by matching bag firmness to your hands/shins

Train clinch-style knees (banana bag) and tight infighting (teardrop)

Great for home gyms, PT studios, garages, and martial arts clubs

How to fill your unfilled punch bag (recommended)

Best filler options (safer feel):

• Shredded textiles / old clothes (cut into strips), towels, rags
• Rubber mulch (commonly used for bags; consistent feel)

To add weight (use carefully):

1. Sand only inside sealed bags (double-bag it), placed in the center/bottom “core”
2. Never pour loose sand directly in (it can settle, harden, and create rock-like spots)

Simple method:

1. Hang the empty bag first (or keep it upright in a corner)
2. Add soft filler in layers and tamp down evenly
3. If adding sand bags, keep them centered and surrounded by soft filler
4. Fill to your preferred firmness, then recheck after 24–48 hours (filler settles)

Tip: If you want a softer bag for hands, use mostly textiles. For a heavier bag that doesn’t swing as much, add a small sand-bag core and wrap it with textiles.

What you’ll use it for

• Heavy bag rounds (boxing/kickboxing/MMA)
• Power development (when filled appropriately)
• Conditioning & cardio circuits
• Technique work: jab-only rounds, kick-only rounds, knee rounds, combo ladders

FAQ

Are these punch bags pre-filled?
No. These are unfilled / shipped empty so you can choose the filler, weight, and firmness.

What can I fill it with?
Best options: shredded textiles/clothes, towels, rags, rubber mulch. For more weight, use sand only in sealed bags and surround it with soft filler.

How heavy should I fill it?
It depends on your training and mounting. Lighter = more swing (good for movement). Heavier = less swing (good for power). If you’re unsure, start lighter and add weight gradually.

Will a heavier bag hit harder?
Heavier bags usually move less and can feel “heavier” on impact—but firmness matters too. Overly hard bags can stress wrists/shins. Balance weight with safe padding.

Is it good for Muay Thai kicks and knees?
Yes—especially the banana-style bags for kicks/knees and the standard heavy bag for all-round striking.

Do I need gloves and wraps?
Recommended. Use hand wraps and boxing gloves for punching. For kicking, shin guards can help depending on your experience level and bag firmness.

Does it come with chains/hardware?
Unfilled bags typically include the bag and hanging straps; hardware can vary by variant. If your listing includes a chain/swivel, it will be shown in the product options/photos.

Can I mount it to any ceiling?
Mount only to a solid beam/support rated for the final filled weight. If unsure, use a wall bracket or a freestanding heavy bag stand.

Why customers choose FitZone360 for punch bags

• Martial-arts focused selection (boxing, MMA, Muay Thai)
• Practical, home-gym friendly options (unfilled = customizable)
• Bag styles for different striking goals (banana/heavy/teardrop/compact)