After years of designing clothing systems that protect in extreme conditions, we turned our attention to the sleeping bag as your final layer of mobile warmth. Viewed as an extension of your clothing system, this bag does a lot more than sleep.
Contoured shoulders and hood as well as zippered armholes provide functional wearability.
A stowed hook at bottom of bag connects footbox to midlength interior loop which shortens the bag for walking around camp.
Lightweight, synthetic insulation maintains warmth even when wet. Durable water repellent finish prevents face fabric from wetting out.
Kelvin Aerolite 30 Sleeping Bag
“Building a system is not something you do as much it’s a way you think.”
- John Barklow, SITKA Big Game Product Manager
We took experience and insights designing clothing systems and applied that knowledge to the sleeping bag, turning something you typically use just for sleep into a multifunctional tool for backcountry use.
Taking cues from one of nature’s most effective insulators — trapped air — we saw an opportunity to make synthetic insulation lighter and warmer while keeping its warm-when-wet properties.
Aerogel, a material originally developed by NASA for use in aerospace applications, is composed of more than 95% air and is the lightest solid material known to humankind.
Tiny particles of infused aerogel form a temperature barrier to block out cold while the synthetic insulation traps air to keep you warm.
Aerogel is the world’s lowest density solid and most effective thermal insulator.
Synthetic PrimaLoft® Gold Insulation fibers are infused with tiny particles of aerogel that form a temperature barrier to block cold while the fibers trap air to keep you warm.
Made from 35% percent recycled material.
Like down, it’s highly compressible.
Unlike down insulation, it retains much of its insulating ability when compressed, and maintains its loft, even after years of packing.
Synthetic PrimaLoft® Gold Insulation with Cross Core™ technology replicates the warmth and compressibility of down...
But with the benefit of warm-when-wet performance.
This bag is designed to be an extension of your SITKA clothing system for full-season performance. As temperatures dip below freezing, stack additional layers under your bag to extend the comfort rating.