I've worn this shirt about 12-15 times now and it seems to be holding up very well. I have the XL and it's sized well for my frame. 6'1" and muscular 235. Most of the Icebreaker items don't fit me well but this shirt is a larger cut. I wouldn't call this large either. It's still athletic just not skin tight. I've worn numerous days in row for hiking, kayaking, and general day wear. Washed the sweat out in the evening and hung dry. Perfect the next day with no stretch or stink.