NWOT Nike and under armour women short sleeve tee shirts size small

NWOT set of 3 work out athletic shirts. NWOT Nike white shirt dri fit size says it’s a medium but fits like a small. NWOT Under Armor heat gear size small fitted in peach. NWOT Xersion V neck. It’s a T-shirt material. I bought with intent to fit in once I lost weight. Washed once but never worn. Pet and smoke free home. Look at pictures despite being different sizes all are the same.