Compact Zip-Together Synthetic Sleeping Bag 15°C, MT 500

Optimum temperature

Comfort temperature 15°C, limit 10°C Synthetic wadding and adjustable hood

Weight

660 g (1.5 lb) in size L Volume: 4.2 L Compression bag provided

Sleep quality

Mummy shape, wider at the shoulders Two two-way side zips Doubles up

Ease of use

Two 3/4 zips with double slider for ventilation

Water repellent

Surface-treated outer fabric so the water slides off

What are the features of this sleeping bag?

- Adjustable hood with an elastic cord - Wide mummy shape at the shoulders - 2 side zips with double slider - Can be paired with another MT 500 15°C or 10°C - A cold-proof flap along the zippers prevents heat loss - The top of the sleeping bag can be opened with the two side zippers

What is the comfort rating?

All our sleeping bags display the comfort temperatures tested by an independent laboratory (AITEX), in accordance with the international standard ISO 23537-1: 2022. The comfort temperature is the minimum temperature at which an average person (woman, 25 years old, 60 kg/132.3 lb, 1.60 m/5′3″) is comfortable, without feeling cold, in a relaxed position. Use this rating to choose the sleeping bag that’s right for you.

What is the temperature rating (lower limit at which you feel comfortable)?

The limit temperature is the minimum temperature at which an average person (man, 25 years old, 70 kg/154.3 lb, 1.73 m/5′8″) can sleep in a curled-up position without feeling cold. And, for your information, the extreme temperature is the minimum temperature at which a person can survive (risk of hypothermia) for 6 hours. This refers to safety, and not comfort.

Which mattress should I use this sleeping bag with?

The protocol for measuring the thermal performance of a sleeping bag is to use a mattress with a thermal resistance corresponding to an R-value of 4.8. If you use a less insulating mattress, the thermal performance of your sleeping bag will be lower. We therefore recommend that you use an insulating mattress for better thermal comfort.

How do you avoid feeling cold in your sleeping bag?

- Warm up your extremities with a hat, gloves, socks and hand/foot warmers if necessary. - Use a sleeping bag liner. -Choose a mattress with good insulation (R-value > 3). - Tense your muscles before you go to bed.

How to repair your sleeping bag

Your sleeping bag may tear on a hike. It happens! The good news is that it can be repaired. We recommend using self-adhesive repair patches.

How much does each size weigh?

- Size S: 560 g/19.8 oz (for users that are up to 1.59 m tall/5′3″) - Size M: 610 g/21.5 oz (for users that are between 1.60 m and 1.69 m tall/5′3″ and 5′7″) - Size L: 660 g/23.3 oz (for users that are between 1.70 m and 1.84 m tall/5′7″ and 6′) - Size XL: 715 g/25.2 oz (for users that are between 1.85 m and 2 m tall/6′1″ and 6′7″) Weight, volume and dimensions can vary from more or less 5% of production tolerances.