10% Off Happy Fathers Day. Discount applied Ends Midnight Dismiss
Skip to content£29.99
Only 2 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.
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.
“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.
Transform your standard fishing seat box into a high-performance, comfortable, and mobile tackle station with the Daiwa Sea Seat Box Convertor. This innovative accessory is designed for the angler on the move, effectively turning a static box into a rucksack-style system. It provides essential extra storage, enhanced seating comfort, and effortless transportability—perfect for long treks to remote beach marks.
Compatibility: Designed specifically for the Daiwa Sea Team Tackle Box; compatible with any seat box of identical dimensions (e.g., Tronix boxes).
Storage: Features two large front zipped pockets and one side zipped pocket for quick access to terminal tackle, rigs, and accessories.
Comfort Features: Integrated cushioned seat top and a dedicated cushioned back support panel.
Transport: Heavy-duty, adjustable shoulder straps in a rucksack-style configuration.
Construction: Durable, water-resistant outer fabric suitable for harsh marine environments.
Rucksack Portability: Say goodbye to awkwardly carrying your box by the handle. The padded, adjustable shoulder straps distribute the weight evenly across your back, allowing you to carry your gear hands-free to your chosen mark.
Enhanced Organization: The addition of external zipped pockets keeps your most-used items—such as disgorgers, scissors, spare spools, and bait elastic—within immediate reach, preventing the need to rummage through the main box during a busy session.
Ultimate Comfort: The cushioned top turns your hard-plastic seat box into a comfortable perch for long, hours-long sessions, while the cushioned back support provides an extra layer of comfort, especially when loaded with heavy gear.
Perfect Fit: Engineered to integrate seamlessly with the Daiwa Sea Team range, this convertor fits snugly, ensuring that the unit remains stable during transport and doesn’t shift while you are walking over uneven terrain.
To maximize the efficiency of your new setup, use the external pockets for your “active” gear—the items you know you will need repeatedly during the session. Keep your heavier items (reels, large spools, heavy weights) in the main box to keep the center of gravity low, and keep the side pocket for your essential safety knife and leader material. This balance makes the box feel significantly lighter on your back during the walk.
Long-Walk Beach Marks: Perfect for anglers walking long distances along shingle or sand to reach the most productive fishing spots.
Piers and Breakwaters: Great for transporting gear safely up and down steep steps or ladders where having both hands free is a major safety advantage.
Any Session Fishing: Provides a massive quality-of-life upgrade for any day-session angler who wants to stay organized without needing a massive mobile trolley.
This convertor is designed for the Daiwa Sea Team box dimensions. If your box has the same footprint/dimensions as the Daiwa or Tronix boxes, it will fit perfectly. We recommend measuring your box before purchase if you are unsure.
No, this is a convertor accessory only. The seat box is sold separately. Please ensure you have the correct compatible base box to utilize this system.
Yes, the straps are designed to be wide and padded to disperse the weight across your shoulders. When adjusting, ensure the chest strap (if applicable) is snug to keep the box tight against your back, which prevents it from swinging while you walk.
“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″