This is a great item. The material is in great quality, breathable and keeps you warm. I took it in a high 40 degrees and it kept me warm the entire time without feeling overheated. For extra ventilation I unzipped the sleeves just to get some air in. I purchased a large according to the sizing chart but it was a little loose and the sleeves is a little long also. I usually liked my kit tight and I didn't expect this to be so loose. Overall, I still love the item and the quality.