Check 10 desks at T9HQ and there's a Hydro Flask on 9 of 'em. That 10th person? Well, she no longer works here. Double-walled, sweat-free stainless steel keeps drinkables hot for up to 6 hours or icy cold for up to 24. Wide mouth makes for easy cleaning, flip top for easy drinking. 20 oz. Catalog/web only.