Ebay offers Sarah Jessica Parker 16" RFID Backpack for $26.29 (reg. $64.99) with free shipping. 

Product Description: 
Ready to adapt to any and every adventure, the Sarah Jessica Parker x American Tourister Convertible Backpack offers unbeatable versatility and style in one lightweight, compact design. Interior padded Laptop & Tech sleeve, fits up to 15” laptops Interior zippered pocket, 2 slip pockets, and 2 pen sleeves Interior water bottle sleeve. Wear as a traditional backpack using the adjustable straps or carry handheld by the top bail handles. RFID protected front zippered pocket includes 2 slip storage pockets & Key Leash Subtle front slip pocket is perfect for easy phone storage.