Small hole on back - see photo. Only goes thru one layer Size 8 Why we made this We made this running skirt with four-way stretch fabric and built-in shorts so you can feel confident no matter how large you leap. The shorts have silicone grip on the hem so they don't roll up mid-stride. Key features Swift Ultra fabric is lightweight, sweat-wicking and has four-way stretch the Light Luxtreme waistband won't dig in secure zipper pocket on back waistband for cards and keys two gel pockets for mid-race snacking back venting adds breathability while pleats give you room to move built-in shorts made of moisture-wicking Light Luxtreme fabric silicone grip at the hem helps keep your liner in place flat seams help stop chafing imported Fit + function designed for: run fabric(s): Swift Ultra , Light Luxtreme front length: 12 1/4" back length: 13 1/4" liner: yes - Light Luxtreme shorts with a 3 1/2" inseam