I ordered the Flow and Frida Kahlo tech tshirts because I love the colours and designs. I ordered to mostly (90%) wear for yoga. The Flow tshirt is black at the front. I wore twice ONLY doing yoga. I noticed a "white" mark on top LHS of tshirt the size of a golf ball but enough to ruin overall look 9f tshirt 😔 I contacted Cycology and they said I must have rubbed tshirt off something!! I sent them photo. I felt I hadn't and IF I had then the tech tshirts are not good quality or very robust! I was told they recommend washing their products in a washbag and in cold water in washing machine. I am now so nervous wearing my tshirts! I am very disappointed with the quality of material. They suggested it is pilling and I should use pilling remover gadget, which I don't have! I feel strongly that this should not have happened to tech tshirts manufactured for cycling etc. I buy a lot of tshirts and have never had this happen before. 😔