Delladio supplied custom mountaineering boots to Italy's soldiers in the Second World War, turned to ski boots in the 1950s, and first introduced the La Sportiva name there. Today the brand makes footwear for mountaineering, climbing, running, hiking and skiing, distributed across Europe and North America, with its first US store opening in Boulder, Colorado in 2024.
The house sponsors athletes across mountain running, rock, ice and alpine climbing and skiing. Its collaboration with Tommy Caldwell produced the TC Pro climbing shoe — the one Caldwell wore on the Dawn Wall, and Alex Honnold on his free solo of El Capitan.