grundens men’s neptune commercial fishing jacket | waterproof, adjustable, black, x-large grundéns inspired by neptune, the roman god of freshwater and the sea, the neptune collection is waterproof, stain-resistant, and flexible so you can move with ease. from durable jackets to waterproof pants, we have you covered. commercial fishermen were front of mind when designing the men’s neptune commercial fishing jacket. features pu-coated polyester material that is waterproof, stain-resistant, and durable. the jacket includes a snap chest pocket, adjustable hems, neoprene cuff, and an active fit that is secure but also comfortable.