Mountain Hardwear Effusion Power Jacket (For Men)

Went on a 5 mile run during a misting 38F day and had a bit of moisture buildup, was wearing a longsleeve cotton shirt underneath. Used on a 1.5 hr hike in the rain and snow stayed warm on the downhill and did not get wet. Sleeves are tight but allow full movement with no restrictions, more like a shirt than a jacket.

Mountain Hardwear is made for small people. This is the second item i've purchased from them and both ran very, VERY small. As a runner I would say this is a very well constructed jacket, and the item does exactly what they promise. Now, as for sizing: I'm 5' 8" tall and weigh 185 lbs. With a 41" chest and a 34" sleave. The medium I ordered was rediculiusly small. The large I reordered is still a bit small, but much better as I believe it was designed to comform to your body. Don't be afraid to buy, just go a size larger than you need.

Great pattern for nordic skiing and running. The perfect location for windblock panels if you are moving forward. Then arms run snug. So if you are between sizes you may want to go up a size if you plane on layering under it with a mid-weight shirt.

Quality of material and craftsmanship feel great. The jacket is not sized correctly. It is too small in the chest and the sleeves are very long. Am returning the medium way too small, and sizing up. Recommend you size up at least one size unless like very snug fit.