GRAIL™ Sneakers, Inc. designs athletic footwear with three principles in mind: fashion, affordability, and ease of use. Our flagship product, the GR-1, utilizes an internal pulley system for adjusting shoe lace tightness. GRAIL™ Sneakers, Inc. prides itself on being technologically innovative, yet fashionably forward.Our innovative shoes-tightening mechanism works as a pulley attached to the back of the heel. In one natural motion, you can slide your shoe on and tighten it. No laces, no hassle. Revolutionize.