£39.99
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.
The Sunset Harness RS Competition is a heavy-duty carrying system engineered specifically for the modern shore angler who needs to transport a fully loaded seat box over difficult terrain. Designed to fit the popular SUNBOX-type fishing boxes (and most similar large plastic boxes or coolers), this harness effectively converts a cumbersome box into a stable, ergonomic backpack.
At Gerry’s Fishing, we consider this essential gear for “roving” anglers or those fishing remote marks. When you have a long trek across sand, shingle, or sea walls, this harness redistributes the weight of your tackle to your shoulders and hips, leaving your hands free to carry your rods and rests.
| Feature | Details |
| Compatibility | Designed for SUNBOX and similar rigid boxes/coolers |
| Back Support | Integrated High-Density Padded Back Panel |
| Shoulder Straps | 2 x Wide, Anatomically Padded Straps |
| Waist Support | Adjustable Heavy-Duty Waist Strap |
| Adjustability | Fully Adjustable “Ultra-Resistant” Webbing Straps |
| Construction | Ultra-Reinforced Stitching & Synthetic Materials |
| Included | Harness System Only (Box sold separately) |
Back-Saving Ergonomics: The core of the RS Competition harness is the padded back panel. It creates a soft buffer between the rigid plastic of the box and your spine, preventing bruising and discomfort during long walks to the water’s edge.
Wide Padded Shoulder Straps: Unlike standard straps that can “dig in” under heavy loads, these wide, padded straps distribute the pressure across a larger surface area, significantly reducing shoulder fatigue.
Adjustable Waist Belt: A critical feature for stability. The waist strap keeps the box from shifting or “bouncing” against your back as you navigate uneven rocks or steep dunes, ensuring your center of gravity remains stable.
Universal Fit Straps: The harness uses ultra-resistant, adjustable webbing that can be tailored to fit various box heights and widths. Whether you are using a standard seat box or a larger insulated cooler, the straps can be cinched down for a “zero-play” fit.
Ultra-Reinforced Durability: Built for the salt environment, the materials are resistant to rot and UV damage. The stitching is reinforced at all high-stress points to ensure the harness won’t fail when the box is loaded with heavy leads and bait.
Long Distance Shore Treks: Perfect for marks that require a 15–20 minute walk from the car. It transforms a grueling carry into an easy hike.
Rocky Headlands & Cliffs: When navigating steep or slippery terrain, having your hands free to balance yourself is a major safety advantage.
Competition Roving: In matches where you need to move pegs or follow the tide quickly, the RS Competition harness allows for rapid “pack up and go” mobility.
Beach Fishing: Keeps your box stable while walking through soft sand, which is notoriously difficult when using a single over-the-shoulder strap.
The Sunset Harness RS Competition is the gold standard for box transportation. It is a “workhorse” accessory that fundamentally changes how you access distant fishing marks. If you find your current shoulder strap is causing back pain or making your box feel twice its actual weight, this harness is the logical upgrade. It turns your SUNBOX into a professional-grade trekking system.
Gerry’s Pro Tip: When fitting the harness for the first time, load your box with its typical weight. Adjust the shoulder straps so the box sits high on your back, then tighten the waist belt securely. The goal is to have about 60-70% of the weight resting on your hips rather than your shoulders—this will keep you much fresher for the actual fishing
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″