The seams are radio-frequency (RF) welded

leather hatband and ventilating grommets in the crown

More than a quarter-century later

Rather than waxed canvas

dries quickly

filson man dry backpack fmbag0009w0173 822 Size:ONE The seams are radio-frequency (RF)When you need to bail water out of the drift boat, or even rafting down a class 4 rapid, youll be glad to have our Dry Backpack securely strapped in. Engineered for straight forward waterproof protection, it comfortably carries gear and keeps it dry, no matter how wet the conditions get. Built with tough 840 denier nylon tarpaulin fabric coated with thermoplastic polyurethane (TPU), water simply cannot penetrate it. The advantages of using a nylon