The present invention relates to core shell microcapsules for use in liquid consumer products, wherein: - the microcapsule shell is made of starting materials such that 50%-100% by weight of said materials have a density equal to or less than 1.05 g/cm 3 - the microcapsule core contains a fragrance composition comprising 20-100% by weight of at least one cyclic fragrance material with a density greater than 0.950 g/cm 3 and a ClogP in the range of from 1.00 to 6.00 - the weight ratio of core materials to shell materials is in the range from about 50:1 to about 1:1.