FREE SHIPPING ON ALL HEAVY BAGS
Prolast Stock 4ft XL 135lb Heavy Bag - Blue
Shell only - fill with your preferred materials for custom weight and feel.
Ready to use - professionally filled for optimal training performance.
PRODUCT DESCRIPTION
PROLAST XXL Heavy Boxing Punching Bag – Made in USA
- Built for Heavy Hitters – Designed to withstand the strongest punches for intense training
- Dimensions – 48" tall x 18" diameter, approx. 135lbs for maximum resistance
- Wider Striking Area – 18" diameter provides versatile target range for all strikes
- Compressed Fabric Fill – Dense professional filling for consistent feel and impact
- 10-Year Manufacturer Warranty – Long-lasting durability guaranteed
- Handcrafted in USA – Trusted by professionals and serious athletes worldwide
The go-to bag for professional boxing and MMA training.
Hit hard. Train harder. Made in America.
Shipping & returns
Prolast Stock 4ft XL 135lb Heavy Bag - Blue
Take Our Heavy Bag Quiz
Answer a few quick questions and we'll recommend the perfect heavy bag for your training needs.
BUILT TO LAST
Premium ripstop vinyl shell with lacquer finish. Weatherproof, tear-resistant, and built for years of heavy use indoors or outdoors.
JOINT-FRIENDLY
Filled with eco-friendly shredded fabric that absorbs impact evenly. No hard spots, no settling. Protects your knuckles, wrists, and joints.
MADE IN USA
Handcrafted in California using sustainable materials and precision stitching. American quality you can feel with every punch.
BUILT DIFFERENT
Material Close-Up
- Ripstop Vinyl Shell
- Weatherproof
- UV Resistant
- Lacquer Finish
- Lifetime Durability
Every Prolast heavy bag starts with our premium ripstop vinyl shell — a professional-grade material trusted by boxing gyms and MMA training facilities across America. Unlike cheap canvas or basic vinyl bags that crack, fade, and tear within months, our lacquer-coated ripstop vinyl delivers unmatched durability for serious fighters.
The high-tensile ripstop construction features reinforced anti-tear threads that stop rips before they spread. Rain, sweat, sun — nothing breaks down this shell. Train indoors or hang it in your backyard. Wipe it clean after every session. Your Prolast punching bag stays looking and performing like new, year after year.
This isn't just a heavy bag. It's the last heavy bag you'll ever need.
SOFT ON JOINTS
Comparison
- Soft Even Density
- Joint-Friendly
- No Settling
- 100% Recycled
- Zero Break-In
What's inside your punching bag matters more than you think. Cheap bags filled with sand, sawdust, or rubber crumb become rock-hard over time. The fill settles to the bottom. Dead spots form. Every punch sends shock straight through your knuckles, wrists, elbows, and shoulders. That's how fighters get injured — not in the ring, but in training.
Prolast heavy bags are filled with 100% recycled shredded fabric — a soft, sustainable material that absorbs and distributes impact evenly across the entire striking surface. No hard spots. No settling. No break-in period. From your very first punch, the bag feels broken-in and ready.
Our shredded fabric fill is made from recycled textile fibers, keeping waste out of landfills while giving you a joint-friendly training experience. It's better for your body and better for the planet.
Train harder. Recover faster. Last longer.
UPGRADE: BOTTOM D-RING
Material Close-Up
- Anchor Your Bag
- Uppercut Training
- Chrome D-Ring
- X-Pattern Reinforcement
- Lifetime Durability
Optional Upgrade: Bottom D-Ring Anchor
Want more control during training? Add an optional bottom D-ring to your Prolast heavy bag. This reinforced anchor point lets you secure your bag to the floor — eliminating swing and giving you a stable target for uppercuts, body hooks, and ground-level strikes.
The D-ring features the same chrome hardware and X-pattern box stitch reinforcement used on our top straps. Built to handle maximum force without tearing or pulling loose.
Ideal for: Uppercut drills, body shot training, Muay Thai knee strikes, and stationary bag work.
AMERICAN MADE
MADE IN USA
- Made in California
- Quadruple Stitched
- Chrome Hardware
- Hand Inspected
- Pro Trusted
Every Prolast punching bag is handcrafted in our California facility by skilled American workers who take pride in their craft. No mass-produced overseas manufacturing. No cutting corners. Just premium materials, precision construction, and quality control that meets professional standards.
Our craftsmen reinforce every seam with quadruple stitching — four parallel rows of heavy-duty thread at every trim band. The chrome D-ring hardware is rust-resistant and rated for maximum weight loads. The straps are cut from the same ripstop vinyl as the shell, ensuring consistent durability throughout.
When you buy Prolast, you're not just getting a punching bag. You're supporting American manufacturing and getting a product built to last generations. This is the heavy bag trusted by professional gyms, boxing trainers, and serious fighters across the country.
Built in America. Built for champions.







