Corkcicle has a new way to hydrate on-the-go. The Hybrid Canteen is for those who prefer drinking from glass, but want the cooling power of insulated stainless steel. The familiar shape of the Canteen is created in hypoallergenic glass with a triple-insulated stainless steel base. The base twists on and off and the glass is dishwasher safe. The threaded cap ensures that the Canteen is leakproof and a non-slip bottom keeps it safely in place.