Chillz Travel Mug - Stainless Steel Insulated Tumbler Bundle With Bonus Straw and Lid - 30 oz DOES THE TRICK! Double wall vacuum insulation mugs provides the ability to maximum temperature retention - Effortlessly BREAKTHROUGH! Superior 18/8 stainless steel strong metal construction makes it easier to feel confident knowing that this coffee mug drink set will be unbreakable and electro polished on the inside to ensure your cups remain rust-free - Easily HIGH-PERFORMANCE! Narrow & tall design ensures it to fit more cup holders - 100% foolproof REVOLUTIONARY! BPA Free best materials ensures you can easily feel safe without the threat of dangerous toxins - Today INTRODUCING! Risk Free Purchase lets you feel confident with a 100% Lifetime Guarantee with proof of purchase. - 100% foolproof