I'll admit, I first purchased this vest as an impulse buy as opposed to seeking this vest out for my specific needs (therefore no vested interest in the product). Overall this vest is excellent and exceeded my expectations. It's two best benefits are that it is warm and insulates very well and it is lightweight and packs down very small (especially when combined with an OR Air Purge DrySac). I've used this vest on a 5 day hiking trip in British Columbia, and during 5-10˚C weather with on/off rain showers, I combined the vest with a long underwear baselayer, gloves and a hard shell and I was very comfortable and kept at a fairly stable body temperature despite the weather conditions. Fits great and will recommend for hiking, skiing, and exercising on colder days. The only con is the side pockets do not have zippers so depending on what it is combined with, it may be difficult to store a pair of gloves or hat.