Vivo Barefoot Primus Trail/Firm Ground Fiery Coral size 38J. These are a junior size, but could fit an adult woman, just reference the Vivo Barefoot sizing guide on their website to see your equivalent size. This shoe has a WIDE toe box to allow for healthy foot spread and natural stability, THIN materials to enable you to feel more and move skillfully, and FLEXIBLE to build foot strength to enable natural movement. Previously owned shoes, but VERY LITTLE wear, these are in great condition. The laces are a flexible and thin drawstring-style. The color looks very red in the photos, but has a more orangey tone.