The leather patch is a popular trend with today's backpacks. It's called a lash tab or pig snout. Originally, it was designed for outdoor packs to pass string through it and fasten equipment. Over time, rubber and plastic replaced leather as weatherproof alternatives. It's also used on personal flotation devices to attach knives, whistles , or other gear.

Today, lash tabs are added to backpacks for a vintage look. They are popular among brands such as Herschel Supply Co., Jansport, and L.L.Bean. While you may not go hiking with that new backpack, at least you'll know how to attach your smelly gym shoes

Produced by Sam Rega

EDITOR'S NOTE: This video was originally published on January 17, 2017

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