I discovered several linen jersey mens' t-shits in one of my favorite luxury re-sale shops, The elongated and roomy shapes made it easy to "feminize" with sheer sleeves and rounded hems.
Body in linen jersey, soft and light with natural temperature controlling property. Sleeves in sheer cotton and cashmere
Tunic length tee in slim fitting linen jersey. This is the luxury comfort fabric bar none. Marled almond and charcoal weave on the body and three quarter sleeves in sheer cashmere and cotton.