Sea To Summit Micro MCII Sleeping Bag

The ultra-light fully-featured sleeping bag“You want to escape, fleet footed and unburdened out into the wild. We wanted to design a bag with such escapades in mind. Ultra-light, amazingly warm, our Micro series unlocks so many possibilities.” T...
$528.95 $349.96

The ultra-light fully-featured sleeping bag“You want to escape, fleet footed and unburdened out into the wild. We wanted to design a bag with such escapades in mind. Ultra-light, amazingly warm, our Micro series unlocks so many possibilities.” Tim Macartney-SnapeThe Micro series are our lightest fully-featured bags, filled with 850+ Loft European Goose ULTRA-DRY Down™. These bags incorporate our 2D NanoShell™ providing the lightest, most breathable water resistant shell.Designed with a contoured mummy shape, the Micro series are the lightest and most compact sleeping bags in their class. With a unique draw-cord opening at the foot for effective temperature regulation, the Micro series can be converted from an open duvetto a technical box foot mummy sleeping bag.Focused on achieving ultra lightweight performance, this bag uses a YKK #3 zipper with micro anti-snag and quilted baffle construction to optimise down placement, resulting in the best warmth to weight ratio fully-featured sleeping bag. The form fitting Micro series uses a 55/45 fill ratio to insulate your core as the bag rotates with you throughout the night. A security pocket located inside the bag is easily accessible and is ideal for stowing electronics to preserve battery performance in cold conditions. The soft touch lining fabric is down proof by construction and highly breathable offering a comfortable sleep.The Micro series is our choice for cycle touring across the Pyrenees, adventure travel on the Inca trail in South America and fast & light backpacking in the Sierras.Box Quilted Mummy ConvertibleThe quilted baffle construction provides consistent down density throughout the sleeping bag ensuring the down is where you need it most. Traditionally quilted sleeping bags relied on sewn through construction resulting in cold spots across the seams. Quilted baffle construction eliminates these cold spots, using lightweight 3-dimensional baffles to secure the down across both X and Y axes.



Repels moisture
Retains loft
Dries faster
Anti-bacterial and anti-microbial
Prolongs the life of your sleeping bag

In a world of technical brilliance it is remarkable that the performance of certain natural products have not been surpassed. Despite advances in modern fibre technology, down is still the best insulator warmth for weight, and is also the most durable sleeping bag insulation.

The problem with down is its vulnerability to water; moisture decreases the ability of the down to loft to its full potential and insulate, decreasing the warmth of your sleeping bag. Once down is damp or wet, it also takes a long time for it to dry out and effectively insulate again.

With the introduction of water-repellent ULTRA-DRY Down we have virtually eliminated the negative effects that moisture has on down. The ULTRA-DRY Down water-repellent treatment protects the down from external moisture and internal condensation.

ULTRA-DRY Down is a permanent* Nano-level water repellent polymer treatment applied to our high loft, high quality down. The Nano-thin treatment vastly improves our down s reaction to water without effecting its weight or loft performance. ULTRA-DRY Down retains over 60% more loft and absorbs 30% less moisture when compared with untreated down. Sea to Summit sleeping bags dry out 60% faster than bags with untreated down.

The Nano-level treatment also inhibits bacterial and microbial growth, which makes Sea to Summit sleeping bags more hygienic and improves their lifespan.
Sea to Summit sleeping bags, using ULTRA-DRY Down in combination with our already formidable 2D- and 3D-NanoShell system give you the best chance of sleeping warm and dry, day in day out throughout the worst of conditions.

With these technologies combined there is simply no reason to choose any other insulation or shell for your sleeping bag.

*No loss of treatment effect has been seen in over 14 wash cycles.

Loft is the volume for a given weight of down. It is used to describe the quality of down, relating directly to the insulating performance. High loft down is warmer for a given weight than low loft down. Higher lofting down will fill a larger volume of space for a given weight. As a result, less down weight is required to fill each baffle in a sleeping bag. This translates to a lighter sleeping bag. The most common measure of loft is called Fill Power. 850 Fill Power implies that one ounce of this down will loft to fill a volume of 850in3.

850+ Loft Goose Down
850+ Fill Power (Loft) Goose Down is the very best quality down available for sleeping bags. It provides the highest insulation for its weight and will last the longest. Sea to Summit 850+ Loft series bags are all filled with Eastern European Mother Goose 850+ loft down. Eastern European Goose Down is well renowned for its high quality, achieving the best loft, with the largest clusters that are strong and resilient, lasting for years.
650+ and 750+ Loft Premium Down

Down Certification

All Sea to Summit sleeping bags are sold with an International Down Feather Laboratory (IDFL) certificate that identifies the exact Fill Power of the down used.
We guarantee our sleeping bags are filled with premium down that exceeds the stated Fill Power in accordance to the International Down Feather Bureau (IDFB) standard.

EN13537 TEMPERATURE RATING SYSTEM EN13537 is a European standard for sleeping bag temperature ratings. Everyone sleeps differently; some people are very warm sleepers while others feel the cold easily. There are many factors that affect your warmth and comfort in a sleeping bag. An important factor is that you use a good insulating mat, so your body heat isn t drawn into the cold ground you are sleeping on. Other factors include your tent or shelter, gender and metabolism, clothing, sleeping bag liner, use of the hood and your daily calorie intake.

Although the EN13537 standard does not identify a single precise temperature a tested sleeping bag is suitable for, it does provide an industry standardised temperature range that a typical user can refer to as a guide for the conditions their bag will be most comfortable in.

THE EN13537 STANDARD PROVIDES THREE TEMPERATURE LEVELS TO GUIDE A CONSUMER IN THEIR CHOICE Comfort- the temperature at which a standard woman can expect to sleep comfortably in a relaxed position. If you consider yourself a cold sleeper use this rating to decide the coldest temperature the sleeping bag is suitable for.

Lower Limit- the temperature at which a standard man can sleep for eight hours in a curled position without waking. If you consider yourself a warm sleeper you can use this rating to decide the coldest temperature the sleeping bag is suitable for.

Extreme- this is a survival only rating for a standard woman. Between the lower limit and the extreme rating a strong sensation of cold has to be expected and there is a risk of health damage due to hypothermia. This is an extreme survival rating only, we do not recommend you rely on this rating for general use.



DOWN: 850+ Loft 95% European Goose Down ULTRA DRY DOWN
FILL WEIGHT: Regular 250 g
BAG WEIGHT: Regular 550 g
LENGTH / ZIP OPTIONS: Regular - right zip | Long - left zip
SEASON RATINGS: Indoor/Summer/Spring/Autumn - 3 season
SUGGESTED USE: Ultra lightweight trekking, Travel, Hiking, Camping, Cycle touring, Alpine style climbing

Size: regular up to 183cm tall, chest circumference 146cm, hip 128cm and foot 88cm

EN tested Temp rating: -13c extreme, 2c to 7c Comfort factor (more on temp ratings and meanings found below in tech talk

Compression bag and packed size: Small 24 x 15cm



Box quilted mummy convertible, 2D NanoShell , differential cut shell, box quilted baffles, 55/45 fill ratio, anti-snag along side zip, hood drawcord with dual adjustment, YKK #3 side zip, drawcord foot closure, large sized internal zip pocket, includes lightweight Ultra-Sil compression bag, mesh storage cell and laundry bag.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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