Deuter Exosphere -10 £190

“Warm, cosy & super-stretchy”

For less than £200, this bag gives you a -4°C comfort rating, lots of features and a good allround design.

The fill is Deuter’s Thermo ProLoft synthetic insulation, which feels warm and cosy, while the overall design is best described as super-stretchy. It features internal and external elastic chamber seams, which provide 25% expansion and contraction in the bag’s width. This means the bag stretches with you as you move at night, but when you’re still the insulation is close to the body, eliminating cold spots and making it super-snug.

Other nifty features include the use of brushed fleece inserts inside the bag for a lovely soft feel, extra waterrepellency at the head and feet via a sturdier Dryzone shell, and Velcro closure to the adjustable neck baffle for a sealed-in feeling around the head.

You also get an adjustable hood, full-length two-way zipper, added insulation in the cosy footbox and a compression sack.

IF WE’RE BEING FUSSY

If you’re going for a budget synthetic bag, there are far cheaper options out there. It’s pretty heavy and big, even when compressed down, and some will find the body-hugging sensation far too tight, narrow and constricting.

FILL

■ Deuter Thermo ProLoft synthetic insulation (gsm not stated)

■ TEMP RATING -4°C comfort, -10°C comfort limit

■ WEIGHT 1780g (including compression bag)

■ PACK SIZE 35x22cm

■ SIZES Regular, slimline (women’s), long Verdict

A super-stretchy, synthetic sleeping bag at a sensible price – but the body-hugging design will polarise opinion.