We spent several months testing these bags in rain, snow and sunshine. They went with us to work, daycare, school and out to play. Much like our Best Diaper Bags Shoot-out for mom, we did extensive work in the field and a lot of side-by-side comparison. Selecting winners from the group was a challenge but it was clear by the end of the testing which ones deserved designation over the others.
Storage and Ease of Use
When transporting temperature labile items such as breast milk, insulation is necessary. We tested all the bags with the Top Pick Comotomo 8oz bottle, the widest of all baby bottles in our Best Baby Bottle review.