Sea to Summit X-Set 11 offers a light and compact solution for making hot meals and drinks in the backcountry. This nesting set includes our 1.3L X-Kettle and two X-Mugs. The innovative X-Kettle collapses to 1 3/8 (35mm) and has a 1-liter safe boiling capacity. A wide base absorbs maximum heat from the stove while protecting the silicone walls. Two glass-reinforced Nylon 66 handles support the upper rim and improve control when pouring. The two X-Mugs nest perfectly inside the Kettle to create an exceptionally compact cook system.