The versatile 'Flint' slip-on offers effortless style for any casual outing. The FLINT from Earth an exceptionally comfortable slip-on for year-round casual days. The neoprene lining stretches with each step and feels silky smooth. Leather perforated footbed for comfort. Kalso Negative Heel Technology. Anatomic Arch Support. Perforated, leather-covered, anatomic footbed with shock-absorbing Gelron2000® to mold to the natural contours of the foot.