Custom Thermoses & Vacuum, Igloo 20 oz Vacuum Insulated Flask - 40Hr Cold Retention, The Igloo 20 oz Stainless Steel Flask is your best companion for road trip or traveling as it has a sleek profile and easily fits into most car cup holders. Its vacuum-insulated design helps keep your cold drinks cold for 40 hours and hot drinks hot for 12 hours. The double wall stainless steel and polypropylene cap improves the temperature retention and doubles as a 5 oz drinking cup. Its inner flapper lid stays on to prevent leaks and pops open for easy pouring or drinking straight from the bottle. The bottle has a durable powder coat on both body and lid and is FDA compliant and BPA free. ... #CG2000 $30.11/each.