Super-soft tee in stretch jersey that moves with you and delivers all-day comfort. It took us 7 tries before we engineered the perfect 4-way stretch fabric for our Koi sapphire line. Once we were satisfied, we put it through over a dozen tests, both in-house and through 3rd party labs, for dimensional stability, color fastness, pilling, abrasion, recovery, tensile strength, and crocking. Only after it passed every single test did we introduce it to the marketplace. We admit that we have impossibly high standards, but it's the only way we know how to do things. At Koi, our mission is to create stuff that people love. We love taking what's ordinary and turning it into something amazing and memorable. We're all about designing happiness and creating products that reflect our philosophy of beautiful, practical design.