I have never before bought a bra I hadn't first tried on, so I was nervous while waiting for this one to arrive.  I only recently discovered bamboo as a fabric and love its softness and strength, as well as how green it is.  This bra definitely does not disappoint.  The fabric is wonderfully soft - I can almost forget I have it on.  The straps are not adjustable so do not fall down - a problem I have with many other bras - and it is wonderful not to have that constant irritation.  It is also seamless so there are no points on the bra where irritation occurs.  Before ordering, check the sizing chart carefully.  I found it to be accurate if using the measurements on the chart - in fact, it is a perfect fit.  I would probably have given this a rating of 5 except for one thing.  It does not provide quite as much support as I would like.  Don't get me wrong - it is supportive enough for everyday wear but I wouldn't wear it while participating actively in a sport.  That said, I plan to order several more so that I have the option of wearing one every day.