RK Pro Series OCR no-tie shoelaces are thinner than the original Lock Laces, allowing for easier installation into popular trail running shoes. The lock has been upgraded and strengthened to ensure that the laces remain secure in all conditions.

The elastic inside each lace provides optimal comfort that endurance athletes need when their feet swell while conquering long distances. The laces are water resistant and will not collect mud.

• Includes: Each pair of Lock Laces contains 2 48” elastic laces, 2 lock devices and 2 cord clips and is suitable for lacing up one pair of shoes.
• No-tie Lacing System:Turn any pair of trail running shoes into slip-ons that will not come untied.
• One Size Fits All: One size fits all (kids and adults), quick to install, and easy to use. Each pair is suitable for lacing up one pair of shoes.
• Stretch Fit Comfort:Our elastic laces conform to your foot for a custom fit. Added compression reduces discomfort so you can perform your best!
• 100% Satisfaction Guarantee:Lock Laces are guaranteed to last the life of one pair of lace up tennis shoes. We know that once you try them in your shoes, you’ll never go back to traditional shoelaces!

Lace Diameter: 5 Strands, 0.19cm