One bag. No compromises. The Boston One Bag is a 28L carry built for 3–5 day one-bag travel. Built with our signature DopplerMatte fabric, a durable waterproof shell with matte waterproof YKK zips. Clean on the outside. Purpose-built on the inside. It is designed for people who move through airports, trains, meetings, and cities without wanting to switch bags or look like they are heading to Everest.

Details

• 28L total capacity optimized for 3–5 day one-bag travel
• 20L main compartment fits two packing cubes, clothes, and spare shoes without bulging
• 8L organized interior keeps passports, cards, cables, and pouches fixed in place
• Fits under international aircraft seats 18.5" H / 11.8" W / 7.9" (47cm / 30cm / 20cm)
• Empty Weight: 38 oz | 1.1 kg
• 3-way carry system switches without unpacking
• Hidden backpack straps for hands-free carry
• Messenger shoulder mode for clean, professional use
• Horizontal brief mode for stability in terminals
• Roll-aboard handle pass-through for stacking with luggage
• Padded laptop sleeve protects up to a 16" laptop with suspended construction
• Interior water bottle pocket centers weight and prevents tipping
• Waterproof wet pocket isolates gym gear, rain shells, or leaks
• Mesh interior pocket provides fast visual access to small items
• AirTag pocket and key lanyard reduce friction when moving through transit
• Adjustable sternum strap stabilizes the load when fully packed
• DopplerMatte Waterproof 900D 100% polyester shell chosen for abrasion resistance and structure
• Ripstop 100% polyester lining resists tearing and improves visibility
• Waterproof YKK zippers stay smooth under load and seal out rain
• Zinc alloy zipper pullers are durable and glove-friendly
• Duraflex POM buckles deliver proven fatigue resistance
• Premium polyester grosgrain webbing adds strength without shine
• Nylon webbing handles with EVA core improve comfort without bulk
• Raised screen-printed branding is durable and intentionally subtle

Fit

• One size fits most
• 18.5in / 47cm Back length

Care

• Spot clean only with a damp cloth and mild soap; do not machine wash or dry
• Air dry fully before storage, away from direct heat or sunlight
• Do not bleach, iron, or dry clean to preserve waterproof coatings and hardware