What is the reason for not wanting the seams on the top of the shoulders? Aesthetics? Weightlifting?
Not seamless, but:
There are a lot of brands that offer t-shirts with "raglan" sleeves where the seam runs from the collar to the bottom of the armpit, instead of along the top of the shoulder.
Or: I personally have a number of the Durable Shirt from Ten Thousand [0], which has 2 seams on the front and back of the shoulder instead of 1 directly on top. This is so you can put a barbell on your shoulders comfortably, but I also like the aesthetic. It also looks like they are currently out of stock on these, but maybe they'll have more in the future.
I had to look up raglan sleeve (it refers to the pieces of fabric and where they are stitched together, not the 2-tone colors which do make it easier to see)
Not seamless, but:
There are a lot of brands that offer t-shirts with "raglan" sleeves where the seam runs from the collar to the bottom of the armpit, instead of along the top of the shoulder.
Or: I personally have a number of the Durable Shirt from Ten Thousand [0], which has 2 seams on the front and back of the shoulder instead of 1 directly on top. This is so you can put a barbell on your shoulders comfortably, but I also like the aesthetic. It also looks like they are currently out of stock on these, but maybe they'll have more in the future.
[0] https://www.tenthousand.cc/products/durable-shirt?variant=39...