Join our Facebook Group and follow other SIB fishing enthusiasts sharing tips, techniques, trips out and more.
£47.99 incl. VAT
An IBF-ready dog life jacket with a cape-style design, 4-point adjustment, neck and chest buoyancy for a natural swim angle, plus a carry handle and leash point.
Bring your best mate along on IBF (Inflatable Boat Fishing) missions with the Mustang Survival UnderDog Foam Flotation dog life jacket. Built for comfort, mobility, and confidence around the water, it supports your dog’s natural swim angle by placing most buoyancy under the neck and chest. A cape-style layout and four adjustment points help you lock in a secure fit across different breeds, while a reinforced carry handle makes it easier to lift your dog back onboard when it’s time to re-enter the boat.
Durable, USCG-approved fabrics are used throughout, including abrasion-resistant Cordura reinforcement on the belly and neck panels – ideal for active dogs, sandy launches, and rugged shorelines. A breathable 3D mesh back helps keep things cooler, and reflective panels improve visibility when light levels drop.
• Helps keep your dog stable in the water with buoyancy concentrated under the neck and chest
• Cape-style design supports movement and comfort while your dog swims or sits onboard
• Reinforced carry handle makes onboard recovery easier on inflatables and small boats
• Reflective details help you keep sight of your dog in low light or busy water
• Cordura reinforcement on belly and neck for added abrasion resistance
• 3D mesh back panel for improved breathability
• Four points of adjustment for a secure fit across different breeds
• Reinforced webbing carry handle for dependable lifting
• Leash attachment point for control on docks, beaches, and boat ramps
• Reflective panels for enhanced visibility in low light conditions
• Ripstop nylon (210/420)
• 500D Cordura reinforcement
• EPE foam flotation
Measure your dog and select the best size for a snug, comfortable fit. Use all four adjustment points to prevent shifting or ride-up, especially when lifting by the carry handle. For IBF use, a secure fit matters most when your dog moves around the tubes, deck, or pontoons.
Rinse with fresh water after use, especially after saltwater trips. Allow to air dry fully out of direct heat before storing.
The UnderDog is ideal for inflatable boat fishing because it supports a natural swim angle, stays comfortable with good mobility, and includes a reinforced carry handle for lifting your dog back onboard.
Most buoyancy is positioned under the neck and chest to support your dog’s natural swim angle while swimming.
Yes. The cape-style design includes four adjustment points to help achieve a secure fit across many breeds and builds.
Yes. It includes a reinforced webbing carry handle designed for lifting and assisting recovery back onto the boat or shore.
Yes. There is an attachment point for a leash.
Yes. Reflective panels enhance visibility in low light conditions.
Shipping this item to mainland UK is:
£5.99
Please see all our Shipping Fees here.
For overseas shipping fees please Contact Us.
Join our Facebook Group and follow other SIB fishing enthusiasts sharing tips, techniques, trips out and more.
Let me know how you’ll use your Hydrus and what you’re looking to buy with it, and I’ll build you a package quote with the best deal available.



