Simms Headwaters Backpack 28L 40L Our all-new Mega Modulus+ graphite

Our all-new Mega Modulus+ graphite matrix and GL8 resin system

Grand Slam (40' head

Easily cuts braid

the MPX provides the same benefits of the GPX

Made from nylon-covered ABS

Simms Headwaters Backpack 28L 40L Our all-new Mega Modulus+ graphiteDestined for elevated backcountry expeditions, the new Headwaters Backpack divides, conquers, and corrals with a rugged 630 Denier build, magnetic roll top closure, ample storage options for fishing necessities, and an ergonomic fit that comfortably handles your long hauls and heavy payloads. Features Durable and water resistant 630 Denier High Density Oxford Nylon fabric with TPU coated frontside and PU coated backside Coated water resistant YKK