Total length : 217cm
Shoulder width : 75cm
Foot width : 50cm
Trapezoid is a popular design for the high quality sleeping bags of many manufacturers, as it provides a good compromise between warmth and weight - warmer than boxwall; lighter than "V" construction.
Differential fill and differential cut
Box foot - trapezium shape, comfortable for all feet positions
Cowl hood with elasticated, one hand operated drawcord,
Insulated neck warmer - a simplified type of neck baffle
Full length, two-way YKK zip plus velcro fastener
Left and right handed zip models available, which can be zipped together if required
Anti-snag, full length zip baffle, down-filled to prevent cold spots
Inside pocket and hanging loops
Supplied with compact, stuff sack and breathable, mesh storage bag
Water resistance is essential to prevent the insulation material from becoming wet and losing some or all of its thermal properties.
Wet insulation is no insulation. Each filament of Pertex fabric has been treated with a water-repellent, fluorocarbon polymer. This is the Pertex DWR+ treatment which gives water repellency without loss of breathability. It also increases the fabrics ability to resist dirt, whilst it itself is immune to washing. The water resistance of Pertex is not reduced through washing and tumble drying
Breathability is necessary for reasons of comfort and thermal efficiency. Body moisture must be allowed to evaporate out of the sleeping bag without creating condensation. And it must be able to do so quickly, without soaking the insulating down and reducing its effectiveness. Pertex is breathable because its water resisting property is not the result of applying a continuous coating or membrane. Pertex can rapidly wick away any moisture inside the sleeping bag, through the micro-pores in its weave.
Pertex is inherently "down-proof" and stain resistant. It is light and soft with excellent "drape" quality, yet very strong. Down is notorious for being able to penetrate fabrics and escape. Pertex is renowned for minimising this effect. The lightness and softness of Pertex, and the way in which it gently drapes to conform to your contours, make it one of the most pleasant fabrics to have in contact with your body. Pertex is very strong and the rip-stop version is stronger still