Simms Tributary Sling Pack Updated for 2026 with highly water-resistant and super-durable materials, plus a refined shape and increased capacity for an easy-wearing, easy-to-use, over-the-shoulder storage solution. Durable and water resistant 630 Denier High-Density Oxford Nylon fabric with TPU coated frontside and PU coated backside YKK® zippered front drop-tray storage with internal and external Velcro® fly patch locations plus two internal drop-in mesh pockets Large-capacity YKK® zippered main storage The Hyplalon tool docking station on the side and webbing loops on the shoulder strap provide optimized accessory attachment locations Quick-release adjustable strap buckle and padded mesh-lined shoulder strap for a comfortable fit Stuff mesh storage pocket located on the underside for water bottles or packable rain jackets Simms Tributary Sling Pack Specs: 630 Denier High-Density Oxford Nylon fabric with TPU-coated frontside and PU-coated backside