Prima Donna Response: The spacer bra is actually amazing- in the sense that once you wear it for a while- the fabric molds to your breast from the heat of the body. There is no “fiber-fill” in this bra. The material is “airy” and lightweight—a soft weave where air can transfer through the chambers, but you still get a “T-shirt” bra fit/look. Marlen from Expat in Tokyo