YETI started off as a solution to coolers that actually last the length of a camping strip – but the brand also caters to vessels that hold just one drink at a time. We’re talking about Rambler, an ultra-tough cup that keeps your drink “as hot or cold as science allows” (as the brand puts it). Crafted from stainless steel so no outdoor party is hampered by broken glass, it’s insulated with a double-walled vacuum and has a magnet on the lid to help keep cold or heat from escaping.| YETI Rambler 20oz outdoor tumbler18/8 stainless steelDouble-wall vacuum insultation, magnetic lid, puncture and rust resistant570mlDishwasher safePlease note, this magnet component is not leakproof and will not prevent spills