Muji Boston Bag

While exact dimensions vary based on your folding technique, the bag is designed to collapse into a flat, manageable square that easily fits inside a standard suitcase or a drawer, making it an ideal secondary bag for trips where you might return with more items than you left with.

The bag is constructed from durable polyester designed to handle significant weight, but keep in mind that as a foldable bag, it lacks a rigid frame or structured base. It is best suited for clothing, textiles, and soft gear rather than sharp or extremely heavy objects.

The water-repellent finish is designed to protect your belongings from light rain, spills, and splashes. It is not waterproof, so it should not be submerged or left out in a downpour for extended periods.

Muji generally recommends spot cleaning with a damp cloth and mild detergent for this type of polyester fabric. Machine washing is not recommended as it can compromise the water-repellent coating and the integrity of the bag's structure.

The design focuses on a large, open-concept 105L capacity to maximize storage flexibility. It does not feature extensive internal compartments, so you may want to use packing cubes or pouches to keep smaller items organized.