The Space Saver (non-expandable)

The Space Saver, a water-resistant laptop backpack, is the perfect combination of fashion and casual.
 
It features a USB port, making it extremely convenient to charge your devices while on the go. This bag also has a high capacity main compartment which can store all your day-to-day essentials. Constructed with waterproof material, this bag ensures that your items stay safe and dry even in the event of rain.
 
With its stylish look and useful features, this backpack will surely be your go-to bag for all outdoor activities.