Aladdin Thermavac Leak-Lock Travel Mug Aqua Blue 250ml 5 "Best ever" Mrs Stanton 27 October 2020 I have purchased both the 250ml and the 350ml Aladdin travel mugs from Lakeland. They look good, are most convenient sizes, and the leak proof flip-top lids are fantastic. I particularly like that the lids are interchangeable between the two sizes, so there's no wondering which lid fits which mug. When going out I can, say, take cold water in my white container, and coffee in the other. I hope Lakeland repeat this review for both the Aladdin 250 and 350ml items because they both deserve top marks.