The B17 is Brooks's flagship model, with over a 100 year heritage. Great for the daily commute, it's also ideal for long distance sports touring, trekking and even mtb use. The model is available in two lengths: the B17S is shorter (242mm vs 275mm of the standard B17), and so sometimes preferred by women. The Standard models feature steel rails, whilst at additional cost the B17 Special features copper plated steel metalwork, and stunning hand hammered copper rivets.Many find a Brooks comfortable from the get go, however as with a horseriding saddle, it will 'break in' as it conforms to your personal shape. As the weeks tick by, it's feel will improve accordingly.