The Inertia Peak Jacket can be used in almost any weather condition, except for the cold and windy winter days. The rest of the year, this jacket is great for providing warmth and dryness during brisk mornings while cycling, climbing, hiking, and even trail running. Panels at the sides allow the jacket to stretch and match the movement of the user, preventing a bulky feel. The Inertia Peak is functional for active types that like the soft shells over hard shells for their active wear.