Children's Lunch Bags called Snack Sacs: 

A perfect and adorable way for your little one to carry his/her first lunch to school. 
Fully insulated
Carrying strap
Front Velcro Flap Closure
Front zipper pocket
Each snack sac comes with 12 inspiring note cards to encourage your child to eat their lunch.

Measures 22cm Height x 17 cm Width x 6.5 cm Depth with 28 cm Strap