Hope this helps
This Spring/Summer/Autumn Woodlore sleeping bag has been made by Nanok and designed by Ray Mears to suit our needs, rather than relying on seasonal ratings from manufacturers who have little experience of extreme conditions.
This Nanok sleeping bag has been designed for use in the Summer months and the more temperate regions. It has a central zip, and is manufactured utilising the most up-to-date man-made fibres.
Features:
Performance rating: 3 Season
Packed size: 18 x 18 x 40cm (equivalent to 10.4 litres)
Unrolled length: approximately 181cm (from top of zip to feet) plus head room
Width: 82cm
Weight: 2014g
Comfort: -15 °C
Extreme: -25 °C