STOWAWAY THERMAL SLEEVE
This reservoir with Thermal Control insulation turns any pack into an all-season 3L oz hydration system. 10mm closed cell foam reservoir insulation. Insulated tube and bite valve cover. Large adjustable carry loop. Attachment points. Weight: 6 oz. (pack only). Total Capacity: 3L/180 cu. in. Fabric: 600D Poly Plainweave.