The Snugpak Isofibre is a siliconized hollowfibre.
The synthetic fibers are structured with a hollow center so they trap warm air between tiny cavities in the fibers.
When unpacked, the hollow fibers decompress and spring back to gain maximum re-loft.
The hollow centre of the fibre can be easily compressed for packing but will also spring back to its original loft.
1. Retains heat when wet
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