1-Layer
The outer shell material is sewn to the upper layer of Polyester fleece. Since this construction can lead to cold spots, we only use it in summer sleeping bag.
H-Chamber-Construction
Treklite 250 SQ, 250 & 300Outer and inner shells are connected by straight baffles. The rectangular chambers are filled with down, which can expand to fulfil its full loft potential.
Thermo Stretch Comfort
Exosphere +2°, -4° & -8°Elastic seam construction allows a comfortabel, body-hugging fit without feeling restricted. Thus the bag warms up quicker and still offers fantastic freedom of movement for a good night's sleep.
