[maphew]

The temperature equalizing sounds interesting. I'd try Joeveo out if one happened to be offered by a friend or something, but it'd have to be pretty special to displace my Thermos travel mug. I've been using the same one for 15 years and it still keeps my drink warm for hours.

Lid is tight and leak proof. I trust it inside my pack. The handle and carabiner are essential components too. Handle hangs over bike handlebars, side of canoe or seat, belt. Carabiner does, well it does what carabiners do!

https://imgur.com/a/5f9rMA2 This pic is from 2014. It's lost the rubber base since then but none of its usefulness.