What Our Gearhead(R) Experts Are Saying: "I love the Tributary Hip Pack when I want to keep it simple but still have room for all my essentials. It's surprisingly spacious, and the adjustable strap lets me switch from a waist pack to a sling in seconds. The U-shaped zipper makes it easy to see and grab what I need." Every cast, every step, every bend in the river-some days call for a pack that keeps up without getting in the way. The Simms Tributary Hip Pack delivers dependable storage in a streamlined design that moves with us. Constructed from recycled 600D polyester with a polyurethane coating, it stands up to scrapes, water, and daily wear. The 5-liter main compartment features an internal stretch mesh pocket to keep gear organized, while a zippered front pocket and a loop field offer quick access to tools and drying flies. The adjustable waistbelt lets us wear it as a lumbar pack or sling it over the shoulder bandolier style. With a hypalon tool dock and daisy chain webbing for extra attachments, it's ready for anything the river has in store.