If you want lightweight gear for the bush and everyday use, then Hypercore fleece is just what you are after. 

Lightweight and warm microplus long sleeve shirt with a high warmth-to-weight ratio.

A warm, durable, lightweight and breathable beanie.

A great lightweight mid layer for cold days and nights.

A great lightweight mid layer for cold days and nights.

Comes with an added chest pocket, this is a great lightweight layer to keep you warm when you need it.

Used as a lightweight mid layer, or as a base layer during colder weather, zipped chest pocket and high visibility fabric.