Each of these toe topping cuties have a heavy sew-in interfacing between the outer and inner fabric layers. We used Soft and Stable™ which is a foam type interfacing, but other heavy sew-in interfacings will work. You just want to look for something that adds soft body to the shoe. Peep Toe: Peep toes have an open toe, ankle strap with button, snap, or, Velcro® closure, and decorative fabric layered flower with button or bead in the center. Outside peep toe is made from one fabric and inside from another. Strappy: Strappy has in-seam rick rack or trim at opening and wrap around ankle strap that closes in front with button, snap, or Velcro®. Outside is made from one fabric and inside from another. Boots: Boots have an inset above the sole, tabs at top edge and decorative quilting detail. The outside sole, inset, and top are lined with a second fabric, and the upper portion of the boot is lined with a third fabric. Flat: Upper flats have pleats and a strap with button, snap, or Velcro® closure. Outside flats are made from onefabric and inside flats are from another. These cuties are designed for lightweight woven fabrics such as cotton, cotton types, denim, satin. Pattern includes 1/4" (6 mm) seam allowances.