Sleeping Well When You Are Backpacking Requires That You Sleep Comfortably. The Comfort Light™ Insulated Sleeping Mat Uses Air Sprung Cell™ Technology And A Hybrid Matrix Of Offset Cells To Provide Excellent Stability And Amazing Comfort. There Is A Double Layer Of Cells In The Torso For Increased Comfort And Warmth, And A Single Layer Of Cells In The Head And Legs To Reduce The Weight. Thermolite® And Exkin Platinum® Are Used To Optimize Heat Retention And The Multi-Function Valve Allows Simple Inflation, Deflation And The Ability To Easily Fine-Tune Your Personal Comfort Level.- The Uprated 30d / 40d Face Fabric Is Quiet And Durable, And The Lamination Technology Continues Sea To Summit'S Class-Leading ReliabilityHighlightsBest Use:- Backpacking, Camping, Bike TouringPerformance:- 3 Season: Take This Mat Out Spring Into Fall, No Matter Where You AreComfort & Support:- 331 Individual Air Sprung Cells. These Small Interconnected Chambers Support Your Weight And Conform To Your Body, Similar To A Pocket Spring Mattress. Durability & Reliability:- The Tough Face Fabric And Tpu-Laminate (Engineered To Sea To Summit Specifications) Mean That The Welds And Airproof Barrier Are The Most Reliable In The Industry. Features:- R-Value Of 3.7 Is Warm Enough For Extended 3.5-Season Camping. Click Here To Learn About The New Astm R-Value Test Standard.- Exkin Platinum® Fabric And Thermolite® Insulation Are Combined To Prevent Heat Loss- Hybrid-Layer Air Sprung Cells Provide More Support And Insulation In The Torso Area As Well As Excellent Comfort.- Quick And Easy Inflation, Deflation And Adjustment Made Possible By Patent-Pending Multi-Function Valve And Supplied Airstream Pump™/Stuff Sack.- Tough 30d / 40d Face Fabric With Sea To Summit'S Liquid-Extruded Lamination Is Quiet, Durable And Extremely Reliable.- Pillowlock™ System Prevents Your Aeros™ Pillow From Slipping.Specifications:- Best Use: Backpacking, Camping, Bike Touring- Comes With: Airstream Pumpsack / Stuff Sack And A Mat Repair Kit- Fabric: 30d / 40d Nylon With Anti-Microbial Liquid-Extruded Tpu Lamination- Insulation: Exkin Platinum Fabric And Thermolite- R-Value: 3.7- Season Rating: 3 Season- Special: Extrusion Tpu Lamination To Reduce Delamination