Details, Size & Fit. Recommended for running, training and yoga. The My Favourite Tank by Lorna Jane delivers style and versatility all at once. The mesh inserts and muscle cut is perfect for layering over your favourite sports bra. Lightweight, woven construction Mesh inserts Muscle tee design Moisture-wicking technology.fabric / material: NA.Materials: 95% Polyester & 5% Elastane.SKU: LO569SA78RCF.