£24.99
Only 1 left in stock
You are just £80.00 away from Free Mainland UK Delivery!
Our entire team at Gerry’s are all experienced anglers and can help you choose the correct tackle for any fishing situation. Please drop us a message or give us a call if you need any help.
You can return unused standard items within 30 days for exchange or refund.
We check our prices weekly to ensure we can combine our fabulous service with the best prices. If you find an item cheaper and in stock somewhere else, drop us a a message in the chat box and we can see what we can do.
We offer free post to any mainland UK address with a basket of more than £80. We also send all over the world and the best way to find out how much postage you will pay is in our checkout. Add the items to your basket and then add your address. Our checkout will automatically calculate your total.
We have come from a tiny fishing store and grown into one of the biggest fishing tackle retailers in the UK winning countless awards over the years. We are still a family business offer fabulous service online and in-store.
Spread the cost of larger orders over 6 or 12 month 0% APR. We also offer longer terms with APR charges via V12 finance. Available in the checkout.
You can make your next purchase a little easier on the wallet by splitting the total into 3 payments by using Klarna payments in the checkout.
“Need advice on tackle? Ask Bob”
Powered by a deep library of angling knowledge, the experience of thousands of anglers & indepth technical product specs. Available 24/7. Just Ask.
Welcome to Gerry’s Fishing. When you’re dealing with a complex lure collection or need to keep your terminal tackle organized within a larger system, the Rivalley RBB (Rivalley Blue Bayou) Sub Case (M) is the professional’s choice for internal organization. Designed for the angler who demands a clean, “no-fumble” tackle management system, this mid-sized sub-case is engineered to slot perfectly into RBB sling bags, life vests, and larger tackle crates.
The crisp White finish is a favorite among technical anglers—it provides high contrast, making it easy to identify your terminal tackle, snaps, swivels, or micro-lures even in the dim light of a dawn or dusk session.
Brand: Rivalley (RBB)
Model: Sub Case (M)
Dimensions: Medium (M) – Optimized for modular integration into RBB bags and vests
Colorway: White (High-contrast for easy visibility of contents)
Material: Semi-transparent, durable, crack-resistant polymer
Closure: Secure snap-latch mechanism
Internal Layout: Modular dividers for custom partitioning
Organization is the difference between a wasted hour of untangling and an hour of productive fishing. The Sub Case (M) is built to be a permanent, reliable home for your essential kit:
System Integration: The “Sub” design is not just a standalone box; it’s a component. It is dimensionally matched to RBB gear, meaning it maximizes internal space without causing the awkward bulges often found when using mismatched tackle boxes.
High-Contrast White Interior: In the middle of a hot bite, you don’t want to be searching for a 0.5g jig head or a specific size of split ring. The white plastic makes even the smallest, dullest-colored terminal tackle pop against the background, saving you precious seconds.
Weather-Proof Construction: The snap-latch closure provides a secure barrier against light salt spray, keeping your hooks and hardware free from the premature rust that occurs when they are left exposed to the coastal atmosphere.
💡 Pro Tip
Treat your Sub Cases as “Loadout Modules.” Rather than having one massive box with everything in it, use multiple Sub Cases for specific roles. For example: Keep one Sub Case (M) strictly for Light Rock Fishing (LRF) hardware (jig heads, snaps, split rings), another for hard-lure accessories (spare treble hooks and split rings), and another for finesse soft plastics. This modular approach means you only ever need to carry the specific “sub-module” required for the day’s target species, significantly reducing the weight on your back during long coastal hikes.
Is this case compatible with other brands of tackle bags?
While specifically designed for the RBB ecosystem, the M-size footprint is very standard. It will easily fit into the pockets or main compartments of most major JDM-style sling bags and life vests from brands like Daiwa, Shimano, and Meihō.
Does the white plastic discolor over time?
The polymer used by Rivalley is UV-stabilized and resistant to the chemical reactions that cause yellowing. Even after extensive exposure to salt, sun, and various plastic lure attractants, the case maintains its integrity. To keep it looking brand new, avoid using harsh solvents (like acetone) to clean it; a simple rinse with fresh water and a mild dish soap is all it needs.
How many internal compartments can I create?
The Sub Case (M) comes with a set of modular dividers that allow you to create multiple long strips or several smaller square compartments. You can adjust these on the fly to fit anything from bulkier items like leader line spools to tiny LRF hooks.
“Need advice on tackle? Ask Bob”
Powered by a deep library of angling knowledge, the experience of thousands of anglers & indepth technical product specs. Available 24/7. Just Ask.
Our entire team at Gerry’s are all experienced anglers and can help you choose the correct tackle for any fishing situation. Please drop us a message or give us a call if you need any help.
You can return unused standard items within 30 days for exchange or refund.
We check our prices weekly to ensure we can combine our fabulous service with the best prices. If you find an item cheaper and in stock somewhere else, drop us a a message in the chat box and we can see what we can do.
This item is available for next day delivery. You can pick this in the checkout.
We offer free post to any mainland UK address with a basket of more than £80. We also send all over the world and the best way to find out how much postage you will pay is in our checkout. Add the items to your basket and then add your address. Our checkout will automatically calculate your total.
We have come from a tiny fishing store and grown into one of the biggest fishing tackle retailers in the UK winning countless awards over the years. We are still a family business offer fabulous service online and in-store.
Spread the cost of larger orders over 6 or 12 month 0% APR. We also offer longer terms with APR charges via V12 finance. Available in the checkout.
You can make your next purchase a little easier on the wallet by splitting the total into 3 payments by using Klarna payments in the checkout.




Penn Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
Wader Waist Guide
Small (28″-30″)
Medium (30″-33″)
Large (34″-37″)
XLarge (37″-39″)
XXLarge (39″-42″)
3XLarge (42″-45″)
Kinetic/Westin Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
3XLarge (54″-56″)
Grundens Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
3XLarge (54″-56″)
Vass Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Trakker Chest Size Guide
Small (38-40″)
Medium (41-43″)
Large (44-46″)
Xlarge (47-49″)
XXLarge (50-52″)
XXXLarge (53-55″)
Korda Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Guy Cotten Chest Size Guide
Small (86 – 94cm)
Medium (94 – 102cm)
Large (102 – 110cm)
XLarge (110 – 124cm)
XXLarge (124 – 134cm)
3XLarge (134 – 154cm)
Fox Chest Size Guide
Small (36″-38″)
Medium (39″-41″)
Large (42″-44″)
XLarge (45″-47″)
XXLarge (48″-50″)
3XLarge (51″-54″)
4XLarge (55″-60″)
Nash Chest Size Guide
Small (36″-38″)
Medium (39″-41″)
Large (42″-44″)
XLarge (45″-47″)
XXLarge (48″-50″)
3XLarge (51″-54″)
4XLarge (55″-60″)
Aqua Chest Size Guide
Small (38-40″)
Medium (41-43″)
Large (44-46″)
Xlarge (47-49″)
XXLarge (50-52″)
XXXLarge (53-55″)
Guru Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Preston Chest Innovations Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Trouser Waist Guide (Inches)
Small – 28″ – 32″
Medium 32″ – 34″
Large – 34″ – 36″
X-Large 36″ – 38″
XX-Large – 38″ – 42″
XXX-Large 42″ – 46″
XXXX-Large 46″ – 52″