The classic green Stanley grumbler now sports a Grand Canyon logo. The 32oz Stanley Classic Vacuum Grumbler delivers the same rugged construction and iconic style of its 64oz Growler brother in half the size. Designed for solo outings or beer tastings, this Grumbler keeps beer cold 14 hours and features the same sturdy handle for easy one-handed pouring and steel-lined lid to ensure you have the best flavor under a frosty head. Made from stainless steel with double wall vacuum insulation and BPA-free plastic, this leak-proof grumbler comes with a heavy duty handle. Designed to keep hot drinks hot for 10 hours.