Our beautiful fabrics are sourced locally. The outside of the Snug Sack is organic cotton twill that is Oeko-Tex certified and the inside is a medium weight organic cotton fleece. The Snug Sack does up with a side zipper. The prints were created and printed in the Vancouver Lower Mainland using water-based dyes. The Snug Sack prints are available in coordinating Crib/Toddler Bed Duvet Covers and Blankets. Sizes S (0-6 months), M (6-12 months) and L (12-24 months).