Never tie your shoe laces again! Patented locking system holds laces firm - even under extreme use. * Easy to use, Stretch-fit comfort, LOCKed-in safety, water resistant, improves performance. * Recommended by Podiatrists. Approved by Athletic Trainers. Loved by Professional Athletes. * Fits any style and size of shoes with shoelaces. * Perfect for walking, running, triathlons, tennis, golf, outdoors, kids, seniors, and individuals with special needs.