Simple Modern Trek Tumbler

If you want one big cup that replaces top-ups, this is aimed at people who drink a lot during the day and hate refilling — commuters, parents, gym-goers and anyone who brings iced coffee to work. The Trek Tumbler is Simple Modern’s 40 oz stainless steel cup that promises long-lived cold or hot temps, a comfortable handle and a straw lid for easy sipping. ## What makes it worth it The Trek uses double-wall vacuum insulation and Simple Modern reports ice remaining solid for hours, which matches real-user feedback that it keeps cold drinks well through a workday; the 18/8 stainless steel shell is durable and resists flavour carryover; and the tapered body plus integrated handle makes it easier to carry and (in many cars) fit into cupholders compared with boxy wide tumblers. The limited lifetime warranty is better than typical short-term guarantees and gives extra confidence at this mid-range price. ## Where it falls short The included straw lid is convenient but not fully leakproof when tipped, so it’s not ideal for stuffing in backpacks or under luggage; the large 40 oz capacity also makes it bulky for some cupholders and bags. If you need a simple, high-capacity everyday tumbler that cuts down refills and keeps drinks cold through a long day, buy this; if you want a fully leakproof bottle for travel or minimal bulk for a small car cupholder, look at narrower, leak-sealed bottles instead.

£12.39