The Xtenex X 300 series elastic laces fit any shoe that has an eyelet size of Approx. 3 to 4 mm. They are a perfect choice for most activities involving normal foot movement; from everyday wear to running. These elastic laces are a much loved favourite in athletic shoes & any shoe type imaginable.
Features: Xtenex laces have an elastic core & a series of knots along the entire length of the lace at consistent length intervals. Stretch the lace & the knots disappear, allowing you to thread the lace through the eyelets. Release the tension & the knots reappear. More knots between eyelets lessens the tension; fewer knots between eyelets increases tension. The Xtenex Lace expands during natural foot swelling & eliminates foot compression The lace does not slip. The knots maintain the original fit by restricting involuntary lace movement through the eyelets; increasing comfort & keeping the foot stable in the foot bed No plastic pieces are needed A lace shoe is made into a slip-on. Never tie you shoe laces again Asymmetrical lacing Glossary: Xtenex (inde Xed-TENsioning-n E Xus) A worldwide patented elastic lace technology that produces adjustable tensioning between shoe eyelets.