It can be hard finding the right tank to layer under hoodies and jackets. You want it to be minimal (so it doesn t add bulk or cause you to overheat), but not too skimpy (in case you want to take the other top off). Which is why this tank is so nice. It s cut especially for layering. But the rib fabric is still substantial enough to be soothing. 100% cotton. Machine wash. Imported.