Sea to Summit Micro MCIII Down Sleeping Bag

-2°C Comfort Limit, 350g of 850+ Fill Power ULTRA-DRY Down (US Method)
Weighs 754g (excluding stuff sack)
Code: SS14596
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Sea to Summit's Micro series are high quality minimalist sleeping bags that nevertheless offer the flexibility of being able to open out flat. It achieves this by having a drawcord at the foot.

Sea to Summit says:

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-Snape

The Micro series are our lightest fully-feautred 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 drawcord opening at the foot for effective temperature regulation, the Micro series can be converted from an open duvet to 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 Convertible

The 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.

Sea to Summit's Micro sleeping bags are an ultralight bag that can be completely unzipped to form a duvet. It achieves this flexibility by removing the footbox completely and replacing it with a drawcord arrangement, so when you need to use the bag as a conventional sleeping bag you simply tighten the cord to seal the foot.

The rest of the bag is minimalist but highly technical in construction and materials - so its performance outshines anything in the same 'flexible use' category.

- Reviewed by BasecampGear

Help and advice:Choosing a sleeping bag adviceEN 13537 rating for sleeping bags explainedAll about down filling in sleeping bags
Sleeping bag shape and sizes adviceSleeping Bag features Page 1Sleepin bag features page 2
  • Box quilted mummy convertible
  • 2D NanoShell
  • Differential cut shell
  • Box quilted baffles
  • 55/45 fill ratio
  • Zip draft tube with anti-snag
  • 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
  • EN13537 Temperature rating: Comfort 4C / Comfort Limit -2C / Extreme -18C
  • Down: ULTRA-DRY Down 850+ Loft, 90/10 European Goose Down
  • Fill weight: Regular 350g
  • Bag weight: Regular 754g
  • Length / zip options: Regular – left zip
  • Season ratings: Spring/Autumn/Winter
  • Suggested use: Ultra lightweight trekking; Travel; Hiking; Camping; Cycle touring; Alpine climbing
  • Compressed volume*: 5.01 litres
  • Compression bag: X Small – 6 to 2 litres
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