The Salewa Mountaineering Shoelace in Black is the heavy duty lace in the range, made for stiff mountaineering boots where the lace has to be pulled hard and hold its tension all day. Black is the standard colour and the one that disappears against a dark leather upper.

• Black: the plain option, chosen to be invisible rather than decorative.
• For stiff mountaineering boots: a lace built to take repeated hard tensioning through hooks, which is where a lighter lace frays first.
• Measure the old lace first: Salewa publish a replacement length table, so match the length rather than estimating it.
• A cheap way to extend a boot's life: replacing laces costs a fraction of a resole and takes minutes.