The backpack turns the big 5-0 today, and in honor of the back-to-school essential’s birthday, Lands’ End is offering a sweet, sweet deal.

The retailer is giving its customers 50-percent-off all backpacks and lunch boxes with free shipping for today, August 8, only. Just head over to the website and enter the promo code “BACKPACK50” and pin “7476” at checkout, or stop by one of the brick-and-mortar stores. You can even place the order by phone, if you’re so inclined.

The offer is valid through 11:59pm CDT, so get on over there and stock up! After all, a brand spanking new backpack has the power to make a kid feel like she can take on the school year.

What other back-to-school sales have you seen? Tell us @BritandCo!

(Photos via Lands’ End)