OOFOS. 1001 BLKBRN. OORIGINAL SANDAL. BLACK BROWN.The OOriginal sandal features revolutionary OOfoam technology that absorbs 37 more impact than traditional footwear foam materials to reduce the stress on your feet and joints. This technology aids in the recovery process and creates an incredibly comfortable sandal you can wear anywhere. The upper features bold catching graphics that is unique to the OOriginal Sport style.