A diaper bag is one of the most essential items parents will need once a new baby arrives. In this episode of The Lab, Daddy Clay and Daddy Brad offer advice on how to choose diaper bags. They review a few options, including a Timbuk2 messenger bag, and backpacks from Diaper Dude and The North Face. Gear Daddy Troy also weighs in on whether or not dad needs a dedicated diaper bag. We'd love to hear thoughts from other dads. Join the conversation at DadLabs.com and tell us what you look for in baby diaper bags. DadLabs Ep. 600 is brought to you by BabyBjorn. Distributed by Tubemogul.