Learn how to Hairpin crochet here. Hairpin crochet slippers Pattern in 4 easy steps. Get the Youtube tutorial how to make these slippers here. Hairpin crochet slippers materials Heirloom Chunky yarn. I used Vel-Luxe Polyester Yarn and crochet hook size 4.0 mm. Sewing needle (for weaving in the ends). Scissors. Hairpin slippers instructions. On the