9 best flasks and thermal cups for drinks and soup By Anya Gilbert Warm up on cold ... at a glance Best flasks and thermal cups to buy Thermos stainless steel 1.2-litre flask This stainless ...

The best vacuum flasks keep drinks hot from morning through to night. We've reviewed the best Thermos flasks, along with vacuum flasks from Chilly's, Stanley and Hydro Flask, and cheaper own-brand ...