Is Supima or pima cotton worth the premium?

Often, for the right piece. Pima is an extra-long-staple cotton that spins into smoother, stronger, more lustrous yarn that pills less and holds softness through more washes — a real durability and hand upgrade. "Supima" is the trademark for US-grown pima, licensed and traceable, so it carries a firmer sourcing claim than the loosely used word "pima." The premium makes the most sense on next-to-skin basics you wash constantly, where the longevity and softness compound into a fair cost per wear. It matters less on a piece you rarely wear. As always, the finished garment’s weight and construction still decide the value.