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Sea to Summit Women's Trek I Sleeping Bag

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Availability: In Stock!

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Availability: In Stock!

Ships tomorrow.
Item # STS9A202M
Employing weather-resistant 650+ water-resistant duck down insulation and lightweight fabrics the Sea to Summit Women’s Trek I sleeping bag has a suggested temperature rating of 28 degrees Fahrenheit.



Employing weather-resistant 650+ water-resistant duck down insulation and lightweight fabrics the Sea to Summit Women’s Trek I sleeping bag has a suggested temperature rating of 28 degrees Fahrenheit.

Catering to female campers and backpackers Sea to Summit’s women-specific sleeping bags are cut shorter provide more room at the hips use more insulation and strategically distribute insulation in the foot and torso to address areas where women frequently point to heat loss. Adding an extra measure of comfort they even include a layer of Thermolite at the feet!

The bag is insulated with 650+ fill Ultra-Dry Down insulation. Renowned for their efficiency in retaining heat and compressible properties the feathers and fibers of down have an incredibly soft comfortable feel and despite advances in synthetic materials continue to provide the best warmth-to-weight ratio of any insulation available. The one weakness of down insulation is that it loses much of its ability to maintain warmth when it gets wet but the Women’s Trek I’s insulation has been treated to add water-repellency allow it to dry faster if it should become wet and most importantly enable it to retain much of its insulating qualities even while wet. The bag’s PermaShell fabric also has a DWR treatment to further protect the insulation from the elements. Soft internal fabrics provide next-to-skin comfort.

The tapered rectangular shape of the bag provides a bit more comfort than restrictive mummy bags while still ensuring thermal efficiency. This efficiency is bolstered by horizontal baffles and 3D side walls that provide the down fill with space to loft while making certain that it doesn’t migrate and create dead spots. A contoured insulated hood adds additional warmth and has built-in adjustability to draw it close in cold temperatures. An insulated draft tube behind the full-length zipper helps to keep cold air from finding its way inside. That zipper continues around the foot of the bag enabling it be unzipped completely for use as a blanket or comforter. A zippered internal pocket is a great place to stash valuables.

Available in your choice of Regular (fits to 5’ 7”) and Long (fits to 5’ 10”) size options each Sea to Summit Women’s Trek I sleeping bag includes an Ultra-Sil compression bag and a hybrid storage cell/laundry bag.

  • Women’s specific cut
  • Increased down in the foot and torso
  • Ultra-DRYDown 650+ duck down insulation
  • 19-28 Degree F suggested temperature rating
  • Multiple lengths
  • 3D hood contstruction
  • 30D shell fabric
  • 2D soft-touch lining
  • Full-length zipper
  • Storage/stuff sack included



Best Use Backpacking, Camping
Insulation Type Down
Item Weight Regular: 2 lb, 3 oz
Long: 2 lb, 6 oz
Other Compression Bag and Storage Cell/Laundry Bag included
Warranty Limited Lifetime
Shell Material 2D PermaShell w/ DWR
Fits to Length Regular: 5' 7"
Long: 5' 10"
Fits to Girth Regular: 58"
Long: 59"
Fill Material Ultra-Dry Down 650+ Duck Down
Temperature Rating 28 Degrees F
EN Comfort Rating 28 Degrees F
EN Lower Limit Rating 19 Degrees F


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