Saturdays NYC link up with Japan’s Porter Bag for a line of ultra-light, packable bags including a tote, rack and the Boston Bag pictured above. The bags were designed for the daily commuter and are made to be extremely compact and adaptable. The Boston is constructed from a durable and water-repellent nylon material to keep your daily essentials dry and safe. When it’s not being used, it can be folded and packed into a small square pouch. Use the accompanying carabiner to clip it to other luggage. Click here to purchase the Boston Bag.