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5.0 1

Sea to Summit

Micro MCIII Sleeping Bag

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The Sea to Summit Micro McIII is the ideal sleeping bag for the ultra-lightweight hiker or trekker or cyclist that’s heading into crispy, cold yonder. Packing down small and light, the McIII will hardly make a dent in your pack or pannier - so you’ll hardly feel it on your back or in your legs.

The horizontal baffle construction, newly reshaped hood, and 850+ loft 95% European goose down will ensure that no cold spots to interrupt your sleep. While the 55/45 fill ratio will keep your core insulated as you twist and turn in your sleep. The Nylon 2D NanoShell™ will keep moisture at bay while providing breathability so the down in your bag will stay in tip-top conditions for years of adventures.  

The Micro McII has a drawcord foot closure, so you can flip between technical box foot mummy and open rectangular configuration to free up your feet. This bag also features a zipped internal pocket for keeping your wallet, passport, or phone safe and warm, a micro anti-snag zip that actually works, and a lightweight Ultra-Sil® compression bag so small it might just get lost in your pack. The Micro McIII is ideal for fast and light travellers heading off on a chilly adventure into the Australian or New Zealand Alps.  

  • Horizontal baffles
  • Reshaped 3D snug hood
  • Micro anti-snag zipper
  • Technical box foot mummy and rectangular configuration
  • Internal zippered pocket
  • Includes compression sack & storage bag


Snowys Code:
Supplier Code:
Comfort Temp. Rating:
4 °C
Lower Temp. Limit:
-2 °C
Fill Ratio Top/Bottom:
55 / 45
Max. User Height:
183 cm
Internal Girth:
146 cm Chest | 128 cm Hip | 88 cm Foot
External Dimensions:
200L x 65W x 6H cm
Packed Dimensions:
27L x 13W x 13H cm
Compressed Volume:
5 L
2D NanoShell™ 20D Nylon with DWR
Fill Material:
850+ Loft 90/10 ULTRA-DRY™ Premium Goose Down
Fill Weight:
350 g
15D Nylon
Zip Draft Tube:
With anti-snag
Neck Draft Tube:
Single YKK #5
0.740 Kg
Suggested Use:
Trekking | Travel
Limited Lifetime

(1 reviews)
5.0 1
5 stars
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1 star
Aug 14 2018

Smallest / Warmest

Used for adventure riding for me
Space and weight is critical
Very happy with my choice
Job done

- Adelaide

Features and size differences 1 answer

Hi, does the MC3 also feature the drawcord foot box and is it possible to get a picture of the MC2 regular next to the MC3 packed down, just so I can get a feel for the size differences, thanks

- Thornton (3 months ago)

G'day Robin,

The Sea to Summit Micro MCIII Sleeping Bag does have the drawcord foot box just like the MCII. I've also popped a photo below for you to see the two side by side. The MCIII is the larger of the two. 

- Snowys(3 months ago)

Is this a newer model?1 answer

This Micro 3 is different to those that I have seen on other websites (including the Sea to Summit website). The others have quilted baffles but the one pictured on your website has horizontal baffles. Is this a newer model? Also, the sleeping bag you have pictured seems more mummy shaped than the others I have seen. Do these still zip open into a rectangular shaped quilt?

- Nelson, NZ(10 months ago)

G'day Alex,

The horizontal baffles are the newer model of the Sea to Summit Micro MCIII Sleeping Bag. The bag also has a "mummy" type shape because it has an open bottom that is pulled shut with a drawstring. If you unzip the bag all the way, it will open up like a blanket, no worries at all!

- Snowys(10 months ago)
Heads up! Our store in Brendale (QLD) doesn’t have footwear available for fittings. If you order online, your footwear will be sent from SA... quick-smart!
Heads up! Our store in Brendale (QLD) doesn’t have footwear available for fittings. If you order online, your footwear will be sent from SA... quick-smart!
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