FITSO Plus Size
Bye bye, belt bag extenders - Hello, size inclusive belt bag
Bye bye, belt bag extenders - Hello, size inclusive belt bag
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Concert venue approved. Festival season ready. Made for YOUR body.
No more struggling with belt bag extenders that break, look awkward, or just don't work. This is the belt bag that was designed from the start for plus-size bodies — tested on a size 22 fit model, adjustable up to 90", and sized to fit numerical plus sizes 14–40.
Whether you're at an outdoor festival, a stadium concert, or a summer event, this bag keeps your hands free and your essentials secure — all night long.
Why it's perfect for concerts & festivals:
- ✅ Venue size approved — 6"x9" meets most concert venue bag policies
- ✅ 3 zipper compartments — fits your phone, wallet, keys, ID, lip gloss & hand sanitizer
- ✅ Adjustable strap up to 90" — wear it as a waist bag, crossbody, or chest bag
- ✅ Water Resistant canvas/nylon — weather-ready for outdoor events
- ✅ Hands-free happiness — dance, eat, and move freely all night
Sizing:
- 0X–4X: strap maximum 55"
- 5X–7X: strap maximum 90"
- Fits numerical plus sizes 14–40
Materials:
- Water resistant Canvas/Nylon
- Available in Black (new colors coming soon!)
Frequently Asked Questions:
Will this pass venue security?
Yes! At 6"x9", this belt bag meets the bag size requirements at most major concert venues and stadiums. Always check your specific venue's policy, but this bag was designed with that in mind.
What fits inside?
Plenty! The 3 zipper compartments fit your phone (up to iPhone Pro Max size), wallet, keys, ID, lip gloss, hand sanitizer, earbuds, and more. One compartment is a discreet hidden pocket — perfect for cash or cards.
How do I wear it?
Three ways: around your waist, crossbody over one shoulder, or across your chest. The adjustable strap makes it easy to switch styles throughout the day.
Does it really fit plus-size bodies without an extender?
Yes — that's the whole point! We designed this bag using a size 22 fit model. No extenders needed. The strap adjusts up to 90" and fits sizes 14–40.
Is it waterproof?
The canvas/nylon material is water resistant, so light rain or spilled drinks at an outdoor festival won't ruin your day. Machine washable.
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4.83 / 5.0
(18) 18 total reviews

It just feels good! Fits perfect, and the zippers are STRONG.
This bag is made really well, I'm the gal who stuffs it full, sometimes with messy crap from my art projects...and I can wash it out easy! It fits everything. I'm glad I have the black so it hides any mess I run into, but am I brave enough to get a second in another color?!
OOOO, do I want one that is multi color? Jewel tones? With threads that stand out and don't match?
Yes, yes I do!
I’ve only had this bag for a couple weeks but it’s my new favorite! It’s the perfect size for concerts and I’m definitely going to use it at conventions since it actually fits around my wrist without squeezing me to death. Fits perfectly on my wrist/hips and as a crossbody. Also am very happy to support a small business that’s based out of Minneapolis, especially right now in 2026.
Thank you so much, Piper! I am grateful for your support & happy you love your waist bag.
Thank you!
Sami
I LOVE this bag!! It’s so sleek and stylish and comfortable! As someone who commutes on public transit, this bag is absolutely perfect. The zippers are super smooth & the bag is really well made. This is my new favorite accessory!! Highly recommend!!
Thank you, Brittney! I am so glad you love your waist bag! Thank you for your support of my small business! Thank you!
Sami
It feels like everyone is wearing waist bags these days and as a tall (6 ft 1!), plus size (4x) person I thought it’d be nearly impossible to find a waist bag that fit me. Then I went to Philly Fatcon and saw the Fitso Belt Bag as a raffle item and was so excited to see it! I entered the raffle thinking if I don’t win, I’m going to go home and buy one — and I ended up winning the raffle! It’s so cute, it has so many pockets, and it’s so empowering! I’m going to get a lot of wear out of this, my first belt bag! Highly recommend!!!!!
Brianna, thank you so much for sharing your great experience with our belt bag. This is exactly why we designed it & I am so glad you find value in our belt bag.
-Samantha
The company sent me an EMPTY BAG! Nothing was inside.
Hello,
We have responded to your inquiry on Wednesday, October 8 and are happy to reach a resolution. The email was sent by Samantha info@fitsoplussize.com. We look forward to resolving this via email.
Thank you.