You never pass up an opportunity to showcase your Borussia Dortmund pride — especially when you're on the go. So, why not choose a spirited accessory meant specifically for when you're mobile? Let everyone know you're a die-hard fan when you put on the Borussia Dortmund Football Core Phase Backpack from Puma. It comes in the team colors and features the club logo, so people can easily see your true fandom on display. The adjustable straps make finding a comfortable fit a cinch while its mesh pocket and main compartment make storing items easy.