Felt Slippers for wearable technology prototyping Fold Slippers are part of Openwear Collaborative Collection (http://openwear.org/lookmap/item/7) and also Openwear Wearable Prototypes - Felt edition Learn More: http://openwear.org/blog/?p=1832CHECK THESE PICs FOR INSPIRATION http://www.flickr.com/photos/openwear_cc/sets/72157630820574680/The file includes slippers of 2 sizes:40 EU - UK 7 - USA 8If you want to use a sewing machine, get rid of the small holes. They are useful if you hand sew.