1.  Are these authentic?  Yes, of course.  Look at my feedback.  Look at the close up pictures of labels.  People know this brand and my customers know better than to buy counterfeits.

2.  But I have a TB shirt and the wash tags on mine are different?  TB shirts have been manufactured in different years, different countries for different markets and different labels.  Not all genuine shirts have the same labels.

3.  How can you price genuine items so low?  I have a few New Old Stock TB shirts left.  I was able to buy them relatively inexpensively several years ago.  Smaller sizes are even less expensive because I am a US seller and in the US market a TB00, TB0, and TB1 are all very small sizes and have a low demand.

4.  What is the deal with TB sizing?  Thom Browne's sizing is confusing, and in some ways just wrong.  For example, TB calls a TB3 a Large.  They typically measure 15.5-34.  No other company calls that a Large.  A TB3 is a Medium Extra Slim by everyone else's standard.

5.  What size should I order?  I give you the actual measurements of these shirts in dress shirt sizing.  Learn how to use dress shirt sizing, which is a neck-sleeve measurement plus a measurement across the chest at armpit level.  For example a TB3 will typically be about 15.5-34, and 22 inches across the chest.  Almost every return I get on Thom Browne shirts is "Does not fit, too small".  If you are in doubt, order the larger size.