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Product Information
The Tusa Cummerbund Extension (MPN CBI-357) is a 12 inch waist belt extension listed as fitting all BCDs, giving divers extra length where the factory cummerbund comes up short.
Who it is for
This accessory is for divers who find their BCD's stock cummerbund too short to close comfortably, whether that is because of a larger waist size, extra bulk from a thick wetsuit or drysuit underneath, or a preference for a more secure, snug fit around the torso. It is a simple add-on for anyone who already owns a BCD and needs extra waist belt length. Rather than replacing an entire BCD because the waist strap runs short, divers can extend the existing cummerbund and keep using the jacket they already know and trust.
Key details
- A 12 inch cummerbund extension that adds length to the BCD's existing waist belt.
- Manufactured by Tusa and identified by part number CBI-357.
- Sold as a single accessory piece that adds length to the BCD's cummerbund.
Compatibility and sizing
This extension is listed as fitting all BCDs, so you do not need to match it to a specific jacket model.
DiveCatalog.com is an authorized Tusa dealer and a dive shop based in Irvine, California, serving divers since 2003. Call or chat with our team at 888-701-4017 if you would like help confirming fit or compatibility with your specific Tusa BCD before you order.
- Added length: a 12 inch cummerbund extension for extra waist belt length.
- Tusa manufactured: Made by Tusa, identified by part number CBI-357.
- Universal fit: listed to fit all BCDs rather than a single model.
- Standalone accessory: sold on its own to extend the cummerbund of an existing BCD.
- Practical fix: Useful for divers who find the stock waist belt too short due to body size or exposure suit thickness.
| Brand | Tusa |
| Product Type | BCD Accessory, Cummerbund Extension |
| MPN | CBI-357 |
| Size | 12 inches |
| Compatibility | All BCDs |
| Category | BCDs - Accessories |
⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Frequently Asked Questions
How much extra length does the Tusa Cummerbund Extension add?
This extension is listed at 12 inches. Tusa does not publish the exact added length, so call us to confirm before ordering. This extra length helps the waist strap close comfortably for divers with a larger waist size or extra bulk from a wetsuit or drysuit underneath, without needing to replace the entire BCD.
Will the Tusa Cummerbund Extension CBI-357 fit my Tusa BCD?
This extension is listed as fitting all BCDs. If you are unsure about your exact BCD, call DiveCatalog.com for help confirming fit.
What is included when you order the Tusa Cummerbund Extension?
The order is for the Tusa cummerbund extension, part number CBI-357.
