Meoky 40oz Tumbler with Handle, Leak-Proof Lid and Straw, Insulated Coffee Mug Stainless Steel Travel Mug, Keeps Cold for 34 Hours or Hot for 10 Hours (Night)

...definitely NOT leak proof. I did turn it over and had a steady stream of water coming out of the hole where the straw sits. Possibly leak proof without the straw inside the cup, but I'd refrain from turning it with the straw inserted, haha. (Well, I had to try it, right?! lol)Keeps drinks nice and cold though, and helps me sooo much to finally drink enough water during the day! Worth every penny just for that... I wasn't planning on forever turning it upside down anyway, haha.4.5 stars if I could. Beautiful colours. Fast shipping. Very happy with my purchase, did wish the price was a bit lower though seen as though how cheaply these can be bought in the US.

The best cup iv bought

Love thisKeeps my drink piping hot for hours

Arrived on time, as advised. I love it.

Disliked the priceLoved everything else

Wonderful large travel mug can carry a days worth of drink easily without out a problem the only things that I don’t like about it are the fact it’s not very easy to clean the mug it’s self and the straw is difficult to buy apart from that I love it it’s well worth the money

I have had this cup now for a couple of months this is the best cup I have brought. With Ice and water the ice is till there 12 hours later and more

Keeps drinks hot and cold for ages, and lightweight to hold and lovely handle!