One Of The Most Versatile Fleece Jackets Arc’teryx Has Ever Designed, The Delta Lt Provides Effective Warmth With Little Weight. Quick Drying, Air Permeable Polartec® Classic 100 Micro Velour Small Grid And Articulated Construction Focused On Ergonomic Freedom And Performance Comfort Make The Delta Lt Extremely Versatile. The Delta Lt Layers Easily Under A Hardshell, But As A Standalone Adds Light Insulation For Higher Output In Cool Conditions. A Low Profile, High Collar Seals In Warmth.