Have been using an insulated bottle for my lunch time Huel for about a year.
Make up 2 shakers the night before- have 1 for breakfast and the other gets decanted into an insulated bottle for lunch. Easier for carrying in bag as not worried about leaks and keeps it chilled without a fridge. Also stops colleagues from commenting on my shaker with ‘eww what is that?!’ -sigh-
Anyway! Found a Camelbak Chute in TKMaxx for £15! Much cheaper than online and looks smart.