This ultralight running jacket weighs just 63 grams and uses advanced 7D fabric construction for sun protection and water resistance. The PCR wind circulation system strategically places laser-cut ventilation holes based on body heat mapping for optimal airflow during activity. Features include adjustable hood with silicon reinforcement, elastic cuffs, drawcord hem, and a TPU watch window on the left sleeve for easy time checks. The jacket packs into its own pocket for convenient transport.