Materials
A hollowfiber is a material which looks like solid cotton wool and consists of polyester fibers firmly bonded to each other.
The foam is a soft froth with a cellular structure, excellent insulating properties, excellent air permeability and elasticity, due to which it is popular. 90% of the material consists of air.
Olefin is a strong, soft, light, pleasant for touching synthetic fabric. It consists of polyolefines which are polymers that are obtained from low molecular weight substances.