I am still searching for reasonably priced T-Shirts that only have seams from the armpits to the hips (one such seam per side), and optionally at the 4 holes for edge reinforcement.
Critically, this means no seams on top of shoulders by any reasonable definition of what "on top of shoulder" means.
You could knit it on a tube knitting machine capable of adjusting loop count/circumference freely.
But for a T-Shirt you have very fine knitting, so regular knitting machines can at best do newborn-sized T-Shirts.
If anyone happens to know where I could order a dozen shirts knitted to spec based on knit design rules and published-by-them loop-pitch-after-first-wash from cotton, I'd love to hear.
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)
You could knit it on a tube knitting machine capable of adjusting loop count/circumference freely.
But for a T-Shirt you have very fine knitting, so regular knitting machines can at best do newborn-sized T-Shirts.
If anyone happens to know where I could order a dozen shirts knitted to spec based on knit design rules and published-by-them loop-pitch-after-first-wash from cotton, I'd love to hear.