Replaced worn out laces  on my Salomons. These look to be double the thickness of the original laces. Used a small flat tip screw driver and a needle nose plier to widen the hole enough to finagle the plastic coated tip of the new shoe lace in. I couldn't crimp the tip flat enough to fit lace into the loop of the white plastic part at the top, so I threaded it between the plastic part and cloth strap.  Shoes are no longer loose fitting.