The Topo Designs Mountain Hydro Sling ($39) is the ideal gift for the active gentleman on the go. Designed for hands-free convenience, it holds a reusable water bottle (up to 32 oz) along with your essential items. Whether hiking, biking, or exploring the city, the adjustable and removable shoulder strap, plus detachable velcro bike attachment loops, make it easy to adapt. With features like a paracord cinch, mesh pocket, and multiple attachment points, the Mountain Hydro Sling is a compact, versatile companion for any adventure.