MAMMOTH Glass 2x350ml Double Walled Heat Resistant Borosilicate Glasses. Mugs and Cups for Coffee Latte Cappuccino Macchiato Flat White Tea Hot Chocolate Beer Chilled Drinks & Icecream

They do exactly what they are supposed to do. I enjoy my first cup of tea in the morning using one of these and with the cold mornings the tea does stay warmer longer. I do recommend them.

Everything you hope for in a lightweight glass mug. Tea stays temperature drinkable for about 20 minutes more than standard cup.

A great sized cup that keeps your coffee hot but unfortunate one cup arrived broken so I'm not so sure they are very durable!! Time will tell for the remaining cup!

keeps coffee hot for longer but would be better with a lid so its even hotter

these are very good if you want a decent cuppa.the lightness of the cup is brilliant considering the volume of liquid in it.handle is nice and large.so easy to hold.would recommend.

Easy to hold, lightweight and heat resistant

Lovely mug. Packaging poor. One was broken on opening

Bought to go with our new coffee machine that has milk on board - glass mugs were recommended. These are big enough to hold double dispensed drinks (necessary for the coffee monster other half!), comfortable to hold, heatproof, pop in the dishwasher and let you see the frothy art of cappuccino and latte making as it happens. No regrets purchasing these.