Jar Container

So I go through one or two of these jars a week and have lots of them laying around. I thought wouldn't it be great if I could use it to carry food to work, but I was afraid of having a glass jar in my bag (I cycle commute). Then I thought maybe I could protect it somehow......so I designed this. Very basic cylinder container with a lid designed for a 95mm diameter @ 134mm high jar. I get these jars from Coles in Australia with Morello cherries in it, seems to be a quite common size I've seen a few other food products using this jar, Aldi Gerkins come to mind..... I'm also kinda hoping the air cavities between the inner and outer walls will create a thermal barrier that will help keep my food cold\hot. Anyway a very basic design, maybe someone will find it useful.....

I found out this also fits rice\corn cakes!