Mummy sleeping bag

• Insulated baffle behind the zip: a filled tube runs the length of the zip, so cold does not track along the teeth once you are inside.
• Duck feather filling: it compresses far smaller than a hollow fibre bag of the same warmth, which is the reason people carry it.
• 320T nylon taffeta shell: a close, light weave over a 320D polyester taffeta lining.
• Mummy cut with a shaped hood: tapered towards the feet so there is less dead air for your body to heat, and the zip is backed by hook-and-loop tabs at the chest.
• Hood that draws in around the face: the cord pulls the opening down to a small gap when the temperature drops, and opens right out when it turns mild.

The Mummy Sleeping Bag: Duck Feather Fill in a Camouflage Shell

Feather fill is a fair trade in this country. It packs down smaller than anything synthetic, and it has to stay dry to keep working, so pair it with a bivvy bag or a decent groundsheet before a night out on the moor. The Mummy Sleeping Bag tapers towards the feet and closes with a full-length zip backed by hook-and-loop tabs at the chest, which is what stops the top gaping at three in the morning. Take a light fill for summer under canvas and a heavy one for a winter bothy. It suits an airsoft weekend or a cadet camp, and the taffeta shell brushes clean when the ground has been generous with the mud.