Just got during warm weather so haven't put it to any test, but I can report on the fit, feel, and look. Fit is typical MH Small, which means that it actually fits like a Small. For a beanpole like me (5-10, 135), it's not tight but not baggy either. Arms are proper length. For those with long arms or those who reach, they might be considered too short. Elastic cuffs are welcome. Fabric's feel is very nice--light and comfortable, yet it seems durable. Hood balances between snug and roomy. Material isn't clingy, yet the hood moves with you pretty well. Looks sharp; all colors are good. If you can't decide, get 'em all! Can see this becoming a favorite for technical and non-technical uses.