So I decided to buy a medium weight base layer set for work. I drive a truck in New England. Didn't realize at the time that I bought the bottoms and top from different companies, But whatever, this review is for the shirt.It arrived late Dec. and I immediately put it on and loved it. Absolutely loved how it fit, felt, looked, etc.. wore it all that day at home and then all night under a sweater. Perfect..I work 4 days a week and I wore it everyday for work. Only washed once per week and never dried in a dryer. Like I said I drive a truck so it wasn't abused or worn under harsh conditions. Breathable, soft, warm, comforting, literally everything good about an article of clothing and what you want it to do. Especially in the freezing cold weather. Come early March I washed it as usual on Sunday and when I took it out of the washing machine I noticed that both armpits had come unsewn along the seams. So weird. Not happy because it's still freezing out and I really love wearing it for work, And it's only been a bit over 2 months of owning it.I take a few pictures and decide to email the company about two weeks later. Send an email explaining my dilemma, attach the pics, and get a response the next day asking for an address on where to send a brand new shirt along with recommended care instructions on how to wash and dry from a very helpful woman named Julia. It came a couple days later and I immediately put it on and I'm back to being happy!I will absolutely be buying the lighter base layer for Fall this year.Thank you Merino.tech!!