Design Philosophy:- Building On The Success Of The Original Pro Sl Primaloft® Jacket, This Updated Version Has Improved Breathability And Stretch Panels For An Even Better Fit.Lightweight Insulation:- Two Different Types Of Primaloft® Fill Have Been Used. 80g Of Primaloft® Gold Has Been Used On The Front Torso, Maximizing Insulation Exactly Where You Need It Most. 60g Of Primaloft® Gold Fill Has Been Used On The Sleeves, Cutting Down On Bulk And 60g Of Primaloft® Silver Active Has Been Used On The Back, Giving Improved Breathability And Accommodating Some Stretch To Create A Great Fitting Garment.Primaloft® Insulation Primaloft®:- Insulation Boasts An Exceptional Warmth To Weight Ratio, Tiny Pack Size, Extremely Breathable Construction And Is Highly Water Resistant Making It A Tremendously Versatile Performance Insulator.Features:- Lightweight, Windproof Shell Panels With Primaloft® Gold Insulation- Pfc-Free, Non-Toxic Durable Water Repellent Finish- Stretch Panels On Underarm And Back For Unrestricted Movement- Triple Rear Pocket System With Zipped Security Pocket- Lightweight Internal Hem Elastic With Silicone Gripper- Ventilation Via Underarm Perforations- Subtle Reflective Details- 90 Day Satisfaction GuaranteeSpecifications:- Material: Elastane 5%, Polyester 35%, Nylon 60%