Lululemon designed this warm, breathable jacket to layer on the slopes, or the hiking trail. They added thumbholes and fold-over Cuffins finger covers to keep sleeves down and chills out, because cold hands can seriously mess with our fun. This is just another great jacket from Lululemon, very much like the forme jacket but longer, great for any time, including early morning runs, but especially walks with the dog and trips to the coffee shop. Soft and comfortable, it is also excellent for layering. This is really one of my favorites, for wearing back on forth to the gym or just going to the store. It is very flattering and the color is amazing! Form fitting yet slimming. Measurements: Size 4 Width: 15" across under the arms Size 6 Width: 16" across under the arms Size 8 Width: 17" across under the arms Size 10 Width: 18" across under the arms Size 12 Width: 19" across under the arms Length: 24" all sizes shoulder to hem