The Rock SJ is a new addition to Mark Ryden’s mega-popular Rock series, designed especially for frequent travelers and those who need more room than a standard city backpack provides. While its exterior preserves the sleek, stone-cut silhouette and stylish hard-shell design of the original models, the SJ version introduces two key upgrades.

First, the backpack is now made from fully waterproof, durable vinyl with a refined texture that feels as good as it looks. Second, with the addition of an expandable zipper, the storage volume can be increased instantly from 20L to 26L — perfect for longer trips or when you simply need extra space. The internal layout has also been thoughtfully redesigned.

The laptop and tablet compartment (for devices up to 15.6") has been moved to the front, safely protected beneath the reinforced outer shell. A removable double-sided organizer has been added for more efficient storage of smaller items. Comfort and durability remain at the highest level, with an ergonomic back panel and air-cushioned straps, precise stitching, premium YKK hardware, and a TSA-approved combination lock for security.

Additional features include 180-degree opening for hassle-free packing and unloading, plus a dual external USB port that allows you to charge both your smartphone and power bank simultaneously.

The Rock SJ perfectly combines a bold, modern look with maximum functionality, making it an ideal choice for travel and everyday use alike.