Don’t let the wild get in the way of your coffee ritual. The Rambler® 4 oz Stackable Cups are perfectly sized for single or double espressos and lined with ultra-sturdy DuraSip™ Ceramic Lining, you enjoy your espresso without worrying about drops. With a barista-friendly design, they fit under most espresso machines and nest in cabinets as easily as they pack up for the campsite.