Thermarest Superlite Large Closed Cell Foam Mat

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Multimat’s Superlite Large Closed Cell Foam Mat is an effective insulating foam mat that is great for lightweight backpacking trips. This is an ultralight sleeping mat that is great for summer camping by itself and it can also be used as a lightweight method of significantly uprating the temperature rating of another mat.

Multimat says

Ultra-light and ultra-compact for competitive challenges and backpacking. Uses the latest materials for quality, reliability and weight reduction. The ultimate in weight reduction and compactness.

This range has been designed and manufactured focusing on the specific requirements of competitive racing and adventure sports. Offering the lightest and most compact options using the very latest ultra light materials meeting the highest standards for quality and reliability.

The lightest solution available. 100% British manufactured using unique ultra lightweight premium quality physically cross-linked polyolefin foam.

Giving a compact quality durable solution for competitive challenges. Individually tested with a 12 month guarantee

Mats supplied rolled with eyelets and lightweight attached webbing.

Our Verdict

Closed cell foam is a fantastically light material, it cushions, is waterproof and provides a high level of insulation from the ground. Sleeping mats made from it are easily the lightest thing to sleep on, so if weight is the key consideration then these are the mats for you.

The other extremely flexible property of closed cell foam is that it can be cut to any size or shape easily with a knife or large pair of scissors. This means that if you really want a mummy shaped mat then it can be trimmed to size and shape and the extra grams discarded.

The eyelets and strap are a simple but great idea from Multimat, the mats are easy to tie off in a roll and you never lose the straps.

The alternatives, such as self-inflating mats, are heavier but may be warmer or offer more comfort for that extra weight.

*Please note that due to the size of these mats we are unable to send on the Free EU Shipping service.

– Reviewed by Ultralight Outdoor Gear

Features

• Waterproof
• Provides insulation and some padding
• Supplied with light straps
• Component temperature tolerance: -70C to +95C

Specifications

• Weighs 175g
• Dimensions 180 x 50 x 0.8 cm
• Rolled size 50 x 15 cm
• ASTM R-Value: Not Quoted
• Old R-Value test: 2.3 (US) 0.23 (SI)

ASTM R-Value:

From 2020, there is a new industry standard for measuring the R-value (level of insulation) of sleeping mats – ASTM F3340-18. This new standard is the sleeping mat equivalent to the EN rating for sleeping bags.

You can now directly compare the R-value of mats rated using the ASTM F3340-18 with confidence that is a fair and accurate comparison between mats. In simple terms, the higher the R-value, the warmer the mat.

In general terms, an R-value below 2.0 is for summer use, 2.0 to 4.0 is for cooler 3 season use and 4.0+ is for winter temperatures. This will be also be dependent on your sleeping bag, how cold you sleep etc. Please contact our customer service team if you need advice on choosing the right mat for your activity.

Help & advice:

• The Ultimate Guide to Choosing an Ultralight Sleeping Mat
• Time-Saver Guide to Choosing a Sleeping Mat
• R-Value Explained