both are compatible with Halcyon BC components

A high warmth-to-weight ratio means you don't need bulk to stay warm

colour temperature cool white

- Choice of Integrated weight pockets ACBS system

front zip covered by an additional zip-fastened flap

Kwark Polartec Power Stretch Pro long sleeve shirt Storlek:XL both are compatible with HalcyonThis might be the warmest and softest baselayer we have ever tried. Entirely made from Polartec powerstretch is fits your body perfectly and provides great insulation in relation to how this it is. The long sleeve top also has a lower back to make sure there are no uncomfortable gaps in between garments.