This is because the bag coolers are designed to come in more compact sizes than the box kayak coolers.
Diy kayak cooler bag.
To increase the friction and reduce movement you can place a rubber pad between the kayak surface and the bottom of your cooler.
The box kayak coolers on the other hand are best for recreational kayaks.
The bag coolers are known to be more suitable for narrow kayaks with limited space.
Feelfree cooler mods for kayak sup fishing duration.
Apply as much pressure as you can to prevent your cooler from sliding on the surface.
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