This cami is made from 92% bamboo and 8% elastane, which is thick enough not to be see-through, but not so thick as to be hot to wear. Great layering piece, that comes with adjustable straps, which can make it a bit shorter or longer. A generous fit, if in doubt go down a size. Our intrepid travelers pick up multiple bamboo tops before they jet off. Gentle cool wash, dry in shade.