Sea to Summit Frontier UL Collapsible Cup

A BPA-free and ultra lightweight collapsible cup. The Frontier Cup's flexible silicone walls collapse easily, making it a pocket-sized drinking cup you can take anywhere. The rigid rim maintains its shape and is heat resistant for your safety and peace of mind. Features : • Nests into Frontier 2L collapsible pot• Collapses flat to 17mm for compact packing• BPA-free, food-grade, heat resistant, flexible silicone sides• Nylon rings at the top, middle and base maintain shapeand prevent fingertips from being scalded Specifications : SIZES: One Size (53g / 400ml)