Readers asked me to detail the La Sportiva tech fittings. Here you go.
La Sportiva started their ski touring boot line around 2012 (has it been that long?). They’ve experimented with tech fittings since the fine day their first pair of ski touring shoes exited the injection mold. You could argue their S3 and S4 inserts, combined with the Trab TR2 binding, are the “Tech 2.0” that I ballyhoo more than is appropriate. Whatever the case, Sportiva tech fittings are not well documented. Perhaps the following will help.
S2? We don’t know what happened. But they jumped to S3…
What will S5 bring? Tech 2.4? Stay tuned.