We have been through numerous sets of double wall and the quality and appearance compared to these Zwilling Latte Mugs were terrible. We ordered these online after almost giving up on finding a decent double wall mug. Thank Goodness! The quality is amazing. First off they are mouth blown and yet they have the appearance of production line mugs. The fact that they are all this well made is a true art. They are super light and yet durable enough to not be so gentle with, which is exactly what we hoped for. They hold up to the double wall hype as well, never hot on the outside no matter how hot the beverage inside is. I also loved how there were notes inside the box on how to care for them to make sure they remain in good quality and last. Do yourself a favor and stop searching for the perfect set of mugs. They are right here! You wont be disappointed.