Lollapalooza NFC wristband. Wristband registration ensures a smooth process when entering the festival each day. This year we’re adding a new (read: easy) way for you to pay for goods, grub, merch and more on site at the Festival.It’s called Lolla Cashless and it’s about to rock your weekend. With the tap of a wrist you can grab a drink or score some eats. So how exactly can you hop on board the Lolla Cashless train? Read below for the nitty gritty details.