Shop Pants and Denim Online in sizes 6-18 with St. Frock! Denim and Pants are an essential part of any wardrobe, from jeggings, flattering high waisted black skinny jeans to ripped boyfriend jeans, classic blue jeans or cheeky denim shorts, we’ve got every shape for every body. For the perfect fit denim, look no further than our super stretchy elastane rich denim in sizes 6-16.