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Apex Over-bag. Layer over any down quilt or mummy bag to boost temperature and manage moisture.  

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The Graupel zipper-less synthetic insulated bag is a cold season companion to any down quilt or mummy bag needing a temperature boost of approximately 10-15 degrees.

The simplicity of the full bag design eliminates drafts and complex strap systems often encumbering quilt-on-quilt applications. In extreme cold a quick setup of one's sleep system can be crucial; the over-bag concept facilitates this. 

Having a quick drying synthetic insulated layer towards the outside will aide significantly in moving moisture away from the down filled under-product. 

The 2.5 oz/yd Climashield Apex (50°F stand alone rating) is enveloped by two layers of 10d nylon, and topped with a dual adjust cord closure. Foot end is the classic sealed mummy style. 

Our many sizing options can be configured to ensure an adequate fit with minimum down loft compression.

Typical total weight from 13 oz and up.   

Size 76L x Regular Plus width x 46" foot. 400g. This size fits quilts and bags up to size long/wide. Shown here with a 28°F Sastrugi inside,

with an expected temp boost down to mid teens Fahrenheit

Generous sized top opening makes it easy to set up

Anatomical foot end works for back-stomach and side sleepers alike, 

without compressing the down loft of the inner bag/quilt

The Graupel from the picture above shown here in a stuff sack 

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Apex Over-bag. Layer over any down quilt or mummy bag to boost temperature and manage moisture.  

Product Options
Climashield APEX Level
2.5 oz/yd equivalent to 50°F / 10°C
Inside Length
Go up one size from your base quilt, or select the length closest to your height.
Overall Width
For layering efficiency adequate bag circumference is important. If you are bigger but use a regular sized quilt, go with Regular Plus, etc.
Narrow - For the smallest quilts
Regular - For quilts up to 56” wide
Regular Plus - For quilts up to 62” wide; Mummy bags
Wide - For high loft winter mummy bags
Footbox Size
Go up one size size from your base bag/quilt. The 46" is a good all rounder, if unsure what you have
Colors will vary depending on stock.
Black 10d DWR Ripstop Nylon Outer - Black 10d Taffeta Nylon Inside
Stuff Sack
Our stuff sacks are pretty dope, but current weight saving trends in ultralight circles eschews this once crucial item. So, opt out and save $ while also being very current.
No stuff sack
Yes, please include a stuff sack
Your Measurements
Optional: Fill in the blanks to ensure getting the best fit. No changes will be made to your size selections without approval
Shoe Size 
What are you layering over? Type, temp, brand