The Sea to Summit Ultra-Sil Sling Bag. The new Sea to Summit 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 bag has been designed for style and comfort. Made from our proprietary Ultra-Sil siliconized nylon fabric, the tiny palm-size pack fits easily onto your key ring or in your pocket as an emergency tote.
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