Sea to Summit"s 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.