The North Face® Men’s Radium Hi-Loft Jacket for mountaineering has the highest warmth to weight ratio of any hi loft fleece from The North Face®. Ideal for reliable lightweight warmth without bulk for backcountry skiing or climbing, the body is made in a low density knit Polartec® Thermal Pro fabric exclusive to The North Face®.
The fabric effectively traps and retains body heat. Distinctive deep channel lines reduce bulk and improve compressibility. Contrast side Polartec® Power Stretch panels yield to athletic body movements. Harness and pack friendly handwarmer pockets. For a warm, technical fleece for weight and space critical mountaineering and backcountry pursuits, choose The North Face® Men’s Radium Hi-Lift Jacket from the Summit Series™.