Nunatak Design

Nano Bag - Multi week lead time - Next Order Window Aug 1, 2026 - Noon MT
Nano Bag - Multi week lead time - Next Order Window Aug 1, 2026 - Noon MT - Image 2
Nano Bag - Multi week lead time - Next Order Window Aug 1, 2026 - Noon MT - Image 3
Nano Bag - Multi week lead time - Next Order Window Aug 1, 2026 - Noon MT - Image 4
Nano Bag - Multi week lead time - Next Order Window Aug 1, 2026 - Noon MT - Image 5
Nano Bag - Multi week lead time - Next Order Window Aug 1, 2026 - Noon MT - Image 6
Nano Bag – Multi week lead time – Next Order Window Aug 1, 2026 – Noon MT
$335.00

Zipperless bag. Simple, light, no nonsense

Temperature Rating *
45°F
35°F

Comfort rated with base layers
Continuous ‘down keeper’ baffle geometry

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Comfort rated with base layers
Continuous ‘down keeper’ baffle geometry

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Inside Effective Length *
62" XS
66" S
70" M
74" L
78" XL

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Shoulder Width *

All products are measured after stuffing and finishing

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Footbox Size Circumference *
40"
44"

Back sleepers with large feet benefits from the bigger option

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Back sleepers with large feet benefits from the bigger option

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Roomy vs Mummy *
Roomy
Mummy

Roomy retain shoulder width to hip level
Mummy start a gentle taper at elbow level
Foot end same for both choices
Weight difference negligible

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Roomy retain shoulder width to hip level
Mummy start a gentle taper at elbow level
Foot end same for both choices
Weight difference negligible

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Materials *



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Down Overfill *
No Thanks
Evenly Through Out
In Foot Section Only

Choose overfill for performance in the long run, better down retention, and a slightly warmer product.
Deselect for cost, weight and bulk savings

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Choose overfill for performance in the long run, better down retention, and a slightly warmer product.
Deselect for cost, weight and bulk savings

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Choose overfill for performance in the long run, better down retention, and a slightly warmer product.
Deselect for cost, weight and bulk savings

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Total price:$335.00

This is the stupid light version of the zipperless/hoodless Sastrugi sleeping bag – which already is a niche product.

Still just a plain bag, generous sizing, quality materials. But now with down fill to match 45°F or 35°°F comfort ratings.

Sewn with box baffles like the big Strugi, but here they are not tall! The average fill volume of 7 ounces (45°F) produces a loft of almost one inch on a good day.

The short clip below illustrates the brief maintenance sequence that will help any down sleeping product achieve long life and continuous performance; not just the quilt used in the video:

 

Frequently bought together

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