WARM & BREATHABLE INSULATION]: Bluesign approved Felix Insulation offers excellent properties: durable in use, lightweight & warm, comfortable & air permeable. Insulation includes kapok fiber is non-absorbent with excellent air permeability and heating properties, brings warmth with lightweight. Breathable and comfortable. Highest level of consumer safety, minimum impact on the environment.[WATER RESISTANT & WINDPROOF] : Outer shell is made of synthetic brushed fiber. Fabric is water resistant