klemheist or french machard friction hitch knot, on white background, with discreet shadow. structure of this knot.

abseiling accessory alpinism ascending background backup canyoneer canyoneering canyoning caving climbing closeup cord discreet double emergency equipment fisherman french friction gear hitch isolated kleimheist klemheist knot line machard macro marine mountaineering nautical nylon object protection rappeling rappelling red rescue rope safety sailing security shadow sport strength string strong structure this tie tight white