What Is a Boat Bag? | Your On-Water Carryall Explained

If you’re picturing one specific product, that’s the first thing to know about boat bags: they come in a few distinct styles, each serving a different job. The term most often refers to a durable tote or duffle for stowing clothes, tackle trays, and camera gear while you’re out on the water. But it can also mean a storage sack built to hold a rolled-up inflatable raft, or a heavy canvas tote with a history stretching back decades. Knowing which one you need comes down to what you’re carrying—and where.

The Main Types of Boat Bags

Boat bags split into three broad categories, and the differences matter more than the shared name. Here’s how they break down.

Fishing and Gear Duffles

These are the workhorses. Bass Pro Shops describes a boat bag as “an alternative to a case or box” for on-water use—essentially a rugged duffle with shoulder straps, side pockets, and mesh compartments. Sizes range from a compact 28 liters up to 50 liters for longer trips.

Common construction includes 600D polyester with a seam-sealed base to resist splashing, plus nylon zippers and an internal mesh pocket for small items. Some models add a one-handed carry handle and an adjustable padded shoulder strap for easy transport.

Raft and Inflatable Boat Storage Bags

If you own an inflatable raft or cataraft, these bags exist to hold the boat itself after use. They’re built from heavy 18 oz. PVC reinforced with nylon webbing, with a zippered closure and breathable mesh panels so your boat can dry while stored.

Sizing is by boat length, not capacity. A medium bag at 40″L x 25″W x 11″D fits 9′ to 12’6″ rafts and 14′ and 16′ cat tubes, while a large 48″L x 31″W x 13″D handles most 13′ to 14′ rafts.

The Classic Canvas Boat Tote

This is the iconic style with real history. Originally introduced in 1944 as an “ice bag” and re-released in its modern form in 1965, the canvas boat tote is still made from heavy-duty 24 oz. cotton canvas with a double-layer base.

They come in four sizes: Small at 8 L, Medium at 17 L, Large at 35 L, and Extra-Large at 56 L. You can choose an open-top design or a zip-top version if you want to keep contents fully enclosed.

Water-Resistant Doesn’t Mean Waterproof

This is the caveat to check before you buy. Boat bags are built to shrug off splashing and light rain, but few are fully submersible unless they’re marketed as dry bags or PVC-sealed. Manufacturer copy tends to say “water resistance” or “protects from splashing” rather than promising a submerged seal.

The seam-sealed bases on many gear bags are a solid start for keeping a wet deck from soaking your clothes, but if you need guaranteed protection for electronics, look for a bag explicitly rated as waterproof.

Sizing and Choosing the Right Bag

Buying by name alone is a common mistake. Two bags both called “boat bags” can have wildly different dimensions, and the right pick depends entirely on what you’re carrying. For gear duffles, check the liter capacity against your tackle trays and clothing. For raft bags, match the bag’s fit range to your boat’s length using the manufacturer’s size guide.

For everyday boating with rods, tackle, and a change of clothes, a 35L to 50L gear duffle hits the sweet spot. For runabout trips where you just need a few essentials, a canvas tote in Medium or Large works well. And if you own an inflatable boat, the storage bag sized to your raft’s length is the only one that will actually fit.

If you’re ready to compare tested models and see which one fits your setup, our roundup of the best boat bags breaks down the top picks by type and intended use.

Keeping Your Boat Bag in Service

Rinse saltwater off the bag with fresh water after each trip and let it dry fully before storing. Canvas totes benefit from occasional treatment with a fabric waterproofing spray to maintain their water resistance. For PVC raft bags, wipe them down and avoid folding them in the same crease every time.

Yamaha Outboards’ own guidance echoes the idea that a well-organized boat bag makes time on the water simpler—keep it stocked with the essentials you actually reach for, and stow it where it stays dry but accessible.