The Almsthre Stem Bag mounts to your handlebars and stem using nylon webbing straps with hook and loop closures. You can position it where it works with your cable routing and cockpit setup without requiring specific mounting points on the frame. The bag holds 1.6 liters, which fits a standard water bottle or a collection of snacks, tools, and small items you want within reach. The cylindrical shape measures ten inches tall and three and a half inches in diameter, which keeps it narrow enough to avoid interfering with your knees during pedaling.

The main compartment uses a cinch-and-release tether closure that secures contents without relying on zippers or drawstrings. A separate gusseted zipper pocket sits on the side of the bag and expands to accommodate cards, keys, or cash while staying close to the main body when empty. The ripstop nylon construction resists tears and provides water resistance for light rain or road spray. A small drainage hole at the bottom allows any water that enters the bag to escape rather than pooling inside.

The bag works for riders who need frequent access to nutrition during long rides, commuters carrying essentials, or anyone who prefers keeping items accessible rather than buried in jersey pockets or frame bags. The straps attach to multiple points on the bag, which lets you dial in the angle and position based on your handlebar width and stem length. The material cleans easily with a damp cloth, and the construction handles regular use without showing significant wear.