Flow Satchel | 4L | Expandable Bottle Sleeve | YKK AquaGuard Zippers

ALPAKA engineers carry solutions from high-performance recycled fabrics made from discarded plastic. The Flow Satchel is a 4-liter bag with a front pocket, Mod Key Tether, and an expandable bottle sleeve that fits bottles up to 8.5cm in diameter. There's a discreet rear zip pocket, a detachable and adjustable shoulder strap that runs from 80 to 140cm, and a flat base so it stands upright instead of flopping over. Side webbing loops let you attach extra gear. YKK AquaGuard zippers keep the weather out. The exterior comes in Axoflux 210D ripstop nylon or X-Pac X42, with an interior in Axoflux X-Grid 150D ripstop polyester—Gray for Axoflux models, Orange for X-Pac. Dimensions are 20-25cm height, 23-37cm width, 9-13cm depth. Weight is 405g for X-Pac or 400g for Axoflux. ALPAKA is a member of 1% for the Planet and channels a portion of every sale into environmental nonprofits, including a partnership with the Surfrider Foundation.

Four liters sounds tiny until you realize how much a person can cram into a bag when they're determined. A water bottle, a jacket, snacks for three people, keys for things you don't open, a book you may or may not finish, and somehow still room for excellence. Stands upright like your self-determination (I have no idea what that means).

• 4-liter capacity
• Front pocket with Mod Key Tether
• Expandable bottle sleeve fits bottles up to 8.5cm diameter
• Discreet rear zip pocket
• Detachable, adjustable shoulder strap (80–140cm)
• Flat base for upright stability
• Side webbing attachment loops
• YKK AquaGuard zippers
• Exterior: Axoflux 210D ripstop nylon or X-Pac X42
• Interior: Axoflux X-Grid 150D ripstop polyester (Gray for Axoflux, Orange for X-Pac)
• Dimensions: 20-25cm H × 23-37cm W × 9-13cm D
• Expandable enough to forgive your optimism about what fits in 4 liters
• Weight: 405g (X-Pac) or 400g (Axoflux)