Come and see our amazing products. The 30oz tumbler with the technology of double walled vacuum insulation can keep your drinks hot for 5 hours and keep cold for 9 hours, so you can enjoy your favorite drink with this insulated tumbler all year round.The stainless steel tumbler with lid and straw is suitable for many occasion: outdoor travel, camping, picnic, hiking, cycling, outdoor adventure, BBQ, swimming pool, beach, RV tours, boating, family gathering, wedding, engagement. Pls confirm with us about the packing info, stock color and exact production time before placing your order.