Apr 15, 2011 - 12:47 PM
"15 consecutive travel days" means that you can use the pass for 15 days in a row, but you don't have to travel every day. Whether you do or you don't, the pass ends 15 days after the first day. There are Swiss Saver Passes for 4, 8, 22 days and 1 month as well.
A 6-day Swiss Flexi Pass is valid for up to 1 month. It starts with a day of free traveling and it ends with a day of free traveling (whenever you want, but no more than 1 month after the first day). In between, you get 4 additional free travel days and 50% discounts on the remaining days.
Just to make sure that you understand the passes well. Enjoy your stay!