Love this jacket. It's light weight and comfortable to wear during sports. Takes up no space when packing. Warm enough for California winter mornings (low 50s) or easy enough to layer under for more warmth. I originally ordered a medium based on reviews that said it ran small but it was too big. Returned for a small and it fits slightly loosely. I'm 5'5" 120 lbs.

I ordered this jacket a few years ago in L. But it was always on the small side so recently I ordered it in XL. It's perfect. It's very light but very warm.

This jacket truly is the only one you will need. Wore it continuously for seven days golfing in Scotland and it kept the wind and drizzle away and I was the perfect temp. Material allows for swinging with no constraints. Excellent weight for stowing in a backpack for chilly airplanes as well. Style is flattering as well.

I bought The One jacket for an upcoming trip to Yosemite. I have worn it very little leading up to the trip but I can say that it is very well made and the fit is perfect. I think it will suit my needs perfectly. I normally wear a medium but the website said that is was a slightly slimmer fit and since I wanted to able to layer underneath, I sized up to a large and I'm glad I did. The fit is still flattering but allows a little extra room for heavier sweaters/sweatshirts.

Love the design and fit. I am usually an XS or S in other brands and the XS is perfect. Fitted and flattering but room to move.
Online customers should beware if they are particular about colors. I have been able to compare the jacket in 4 different colors (Hydrangea, Eucalyptus, Veridian, and Raven). All except raven are much more muted and slightly more neutral in person. Not sure if the difference is lighting or if they touched up the photos to give the jacket more of a sheen. Not a dealbreaker for me but also not exactly what I was expecting.

I bought my first "The One" jacket at REI...the lightness of the jacket, the non-bulky nature of it, plus the warmth it supplies with its lining makes it the perfect spring/summer evening/autumn outerwear. So...I bought another, and I added a vest. I also bought one for my daughter. This style is the best!

First off I should say that I have never posted a review of anything I've purchased online - ever. Not because I didn't like things but I just don't write reviews. That is until this jacket. I bought this jacket to take on a bike tour in early fall in Maryland. It was perfect! Not overly warm, which made it great to ride in on cool mornings layered over my jersey. It's so comfortable I wore it in the evenings too, sometimes layering over a sweater if it got too cold out. When I got cold sleeping, I even slept in the jacket one night and it was perfect! I've never had such a versatile jacket for cool weather that is so comfortable to ride and hike in. I also get a ton of compliments on the jacket, specifically the color (veridian). I originally ordered the cardinal color and was disappointed that it wasn't at all the color I expected. I returned it for the veridian and am really happy with this color. I generally wear a small and the fit is really true to size. I could have sized down but wouldn't be able to easily layer nearly as well. Overall I can't say enough good things about this jacket - a great purchase!

I absolutely love this jacket! It is perfect for the shoulder season and layers great with vests, heavier jackets or to just throw over a tank or tee. It packs great and is one of my essential items to have with me now. Our foothills can get breezy on hikes and The One holds up so well to that. This jacket breathes well and washes great (according to instructions). Definitely recommend buying The One jacket!

This jacket is the best. I ordered size small and it is true to size. For reference, I'm 5'3" and 120 lbs. i own 2 The One Jackets and planning to order more for my daughters, they love it too and wear them all the time.

Between us my husband and I own four of these jackets in different colors and love them. The fit is as expected in both men's and women's. We find this jacket quite comfortable and versatile for home and travel. Unfortunately we have had a couple of problems. I wore a brand new jacket on a 42 day cruise. After just that one trip, I found that the ribbing insert of the sleeves was pilling. My husband wore his during a meal and dropped something like olive oil onto the chest area and had a large grease spot on his jacket. I tried washing the spot with Shout, then again with Dawn detergent, and lastly even with an Oxi product, all with little success. Finally, with nothing to lose, I tried Dawn Power Wash on the spot, hoping it wouldn't stain the dark grey jacket. I let it set for six hours before I washed the jacket one last time. Finally his jacket is wearable again.