Based on this product's specifications, here are some alternatives and similar models
Backpack Peak Design Everyday Backpack V2 20L Charcoal — camera and daily carry backpack
Summary description:
Everyday Backpack V2 20L by Peak Design in Charcoal is a versatile backpack designed for carrying camera gear and everyday items. With a 20‑liter capacity, it offers configurable internal dividers, dedicated camera protection, and external access options. Suitable for photographers and commuters who need organized storage, quick access, and reliable protection during travel and daily use.