Elbrus lace discovery laces Properties: Durable laces for trekking shoes Strong, thick weave ensures durability of the laces The laces are designed to neither stretch nor fray. Models of different lengths Material: polyester fiber TPU Color: black yellow;Elbrus lace discovery laces Properties: Durable laces for trekking shoes Strong, thick weave ensures durability of the laces The laces are designed to neither stretch nor fray. Models of different lengths Material: polyester fiber TPU Color: black white