Nordace Siena II Smart Backpack。This NWT Nordace Siena II smart backpack has a padded compartment to protect your laptop, features an impressive capacity of 22L to carry all your on-the-go essentials such as notebooks, stationery, extra clothes, and even a camera case. Stretchy and expandable, the water bottle pocket makes it easy to stay hydrated throughout the day. The Nordace patented 3-in-1 USB charging port will keep you connected anywhere with adaptors for Type-C, Lightning and Micro-USB, so you can travel conveniently without the hassle of carrying multiple cables.