Our bottles are made of lightweight recyclable 18/8 stainless steel and feature double wall vacuum insulated technology. This technology prevents condensation on the outside of the bottle, known as sweating, and keeps your preferred beverage toasty hot or icy cold for hours. We offer these bottles in a wide mouth and standard mouth design. The wide mouth bottles come in 18oz , 34oz and 40oz sizes with multiple colour options to choose from. The standard mouth design comes in a 25oz size with a 2 finger grip lid.