The Oasis Bottle is a good quality stainless steel, double walled, vacuum insulated bottle (copper lined). Powder coating is a high quality matt finish with increased durability. Keeps hot drinks warm for 12 hours and cold drinks chilled for up to 24 hours. Supplied in 100% recyclable packing (compostable corn starch liner and FSC certified, quality card tuck boxes). Supplied with silver lids. 500ml.