Campus Isolierflasche mit Klappdeckel 500 ml - Cool blue

The button flip is so smooth that I can open it one-handed while walking to class, and the lid staying open means no annoying clicking sounds between sips. It’s survived a full day in my backpack with sparkling water inside and not a drop leaked.

The one-button flip cap is the reason I bought this, and it works exactly as promised—lid stays open while I sip, no annoying holding it back with my hand. I’ve tossed it in my backpack sideways with sparkling water inside and not a drop leaked. The cool blue color looks even better in person, and t

The double-wall insulation actually keeps my water icy for a full workday, even when I leave it in a hot car. The button flip cap is smooth and the lid stays put while I’m chugging, and it hasn’t leaked a drop in my bag.