Long sleeve L.L. Bean lightweight top size medium

Lavender LL Bean top size medium. Long sleeve, lightweight cotton. Looks like slight discoloration under the armpit area so I tried to get that in a pic but it's hard to see. This shirt is very light purple / lavender! I added a stock photo to show the color- I think it's the correct color, but a tiny bit darker. I have a large chest and shoulders, and long arms and this feels too short on me.