The Ultra-Sil™ Sling Bag is the ideal companion for the modern urban traveler. Maintaining the same great ultra lightweight, super strong and compact appeal of our Shopping Bag and Daypack, this foldable bag has been designed for style and comfort. Made from our proprietary Ultra-Sil™ siliconized CORDURA® nylon fabric, the tiny palm-size pack fits easily onto your key ring or in your pocket as an emergency tote.