Tupkee Double Wall Glass Tumbler - 14-Ounce, All Glass Hand Blown Reusable Insulated Tea/Coffee Mug & Lid, Travel Mug - Jacaranda

This glass seals well. I was surprised by the mouth feel when drinking from the top. The hole is not large enough for a straw, but it is a joy to drink from it. Unfortunately, the glass fell and shattered. I'll get another one.

Sleek and easy to carry. Could sweat a little less, but otherwise good quality. Good size. Fits my car and my small hand.

This glass glass is the bomb. Perfect size for my hand. Will be buying another one. My new go to drinking glass.

This is a beautifully blown glass travel mug, and does a good job keeping hot beverages hot. However, as others have noted, it is not leakproof. If it tips over, the beverage will pour out of holes in the top of the mug. Additionally, the lid does have a tendency to separate out of the base, especially when heated. This causes the mug to leak from the side when drinking. I added a silicone band to cover the seam between the lid and the base. This completely prevented the lid from separating from the base, and stopped the cup from leaking. I used JOVITEC 12 Pieces Rubber Bracelets, Solid Color Silicone Wristbands, Multi-Pack Blank Wristbands Bracelets for Events Rubber Bands Party (Black). A better (wider) band is Grippy-Bands Colorful Water Bottle Grip Kit (both available from Amazon).

DO NOT BUY.! I wanted like this so bad! I saw that it was fragile so I was super careful. I haven't broken it yet but it is very very fragile. BUT THE TOP WONT STAY ON. I saw that review many times too and thought I'll keep it clean and handwash. NOPE it didn't make a difference.I like. This glass tumbler to the boyfriend everyone tells you isn't right for you but you do it anyway.Soooo... listen this time and say yourself some money!This product needs to be removed from Amazon.

I love this thing. I do not want to keep drinking hot liquids from plastic containers that leech microscopic bits - I want glass-only. I have had the Tupkee a couple of weeks now, and it keeps my coffee hot and greatly improves the taste. I have ordered several more, in different sizes, for different uses. Great product.

This mug works well and has good construction with no leaking. But, the mug does not insulate well. there is a hole in the bottom of the glass, so the air between the the walls of the mug gets warm/cold, which warms or cools the glass.

I really like the glass cup. This is an item that you should use with care. Maybe they should have a rubber sleeve or something with it. I was getting in the car and put the mug in the cup holder. As I was putting on my seatbelt the metal lack hit the mug. It did not break it. But one day it might. Just be careful with it.