Long-distance trail engineering and advanced microclimate mapping give this technical windbreaker jacket an impeccable off-duty pedigree. Formed from an ultralight polyester shell with robust polyamide inserts, the windproof canopy features strategic side aeration zones. The slim-cut, low-slung framework compresses into its own pocket, framing the body with absolute minimal bulk.. Ultralight windproof canvas construction utilizing a polyester-polyamide blend Integrated climate ventilation tracks under the arms and lateral panels High protective collar leading into a compact fitted trail hood Long sleeves finished with comfortable, zero-bulk elasticized cuffs