A versatile and technical mid-layer that is both insulating and breathable - the Icebreaker Descender LS Zip is ideal for cold, high-movement days. Merino wool spun around a polyamide core has been brushed to create a very warm fleece. The fabric has chambers that trap air for improved warmth, breathability and insulation. A touch of elastane ensures a comfortable stretch and body-hugging fit, while the Corespun technology ensures robustness. The Descender also has side bags with zips, offset side and shoulder seams and fold-down cuffs to keep your hands warm. Your ideal midlayer.