Arc'Teryx Calidum 5 Panel Hat Brand_HydroFlask you're probably going to need

you're probably going to need this one in every color

keeping the V3 liner and boot shell locked in and connected

Security Pocket

It acts as an added layer of insulation against cold poles with your bare hands

Arc'Teryx Calidum 5 Panel Hat Brand_HydroFlask you're probably going to needPerformance five panel hat with a classic look and comfort stretch. CALIDUM 5 PANEL CAP The Calidum is a little different. We took the classic five panel design, then made it with the same performance structured mesh we use in our Konseal climbing harness. The result's a durable, breathable cap that works anywhere pushing it on the trail, hanging out at camp, and resupplying in town. The material's stretch forms to fit, and the back secures with a TPU