T-shirt: I am a 5’9”, 135 lb woman and I ordered the size small. The fit was perfect, fitted yet not too tight. I am normally between small and medium, but for this shirt small was just right. The fabric is super soft and very comfortable, and the logo colors are vibrant. A good quality shirt and worth the cost.
Boat shirt/rash guard: I am a 5’9”, 135 lb woman and I ordered the size small. The fit was on the looser side for me—if you like your rash guards to be tight I would suggest sizing down one. I prefer the slightly looser fit because I will wear this as a t-shirt and for sun protection as well as layering it under my wetsuit. The shirt is quick drying, comfortable, and a good value for the cost. Logo colors are vibrant.