We've had this conversation before, but I suspect these are either rebranded Tultex 241's or the 241's are rebranded M&O's. Tultex has a lot more color choices, so maybe rebranded Tultex.m&o 3541's are 65/35 too (white, black and heathers)
Do you mean this color? Jiffy lists it as "heather charcoal." If there was one that was similar but a lighter grey, that would be awesome.Hands down my favorite shirt to sublimate is the heather grey Tultex.