Marmot Ion Windshirt - Men's

Love wearing this on a cooler,windier day.Keeps the rain away and yet keeps me warm....specially on a bike.Light wearing and folds up real small.Kinda weird tho....I'm 5'11"/170#/chest 42"... the sleeves are more than long enough and the chest has the room.....however the length is kinda short.Not overly but it is short.Blue is the colour.......is darker than the pic!

I was giddy at the idea that a hooded jacket could be 3 ounces- but ounce counters and gram freaks beware! I have a Men's SMALL and my brand new calibrated scale measures it at 4.7 the construction is ok, but no drawstring at the waist and the drawstring keepers at the hood are flimsy foam that wont last. Should have used mini-mini cordlocks. Bottom Line: if you are going to advertise a weight, at least weigh the item.

Lightweight, waterproof, windproof and easy to fold up and put in your pocket.

Great combination of light weight and warmth. Good for holding in warmth and cutting the wind at low exertion times. It doesn't breathe quite well enough for high exertion activity.

Ion is a great wind & light rain jacket. Definitely for the active sports of running, hi-tempo riding, & XC skiing. Don't try & sit in it at a December Chicago Bears game. I'm 5'10" & ~ 165lbs, it has a technical fit, but never feels restrictive. My Men's medium weighs 4oz. For those windy days or rides, its a very versatile piece when you choose to layer it w/ various weights of wicking base layer. I found mid 50's w/ capilene 2, 40s w/ capilene 3, & powerstretch for the 20-30s to work best for me. I know its cliche, but it really does work & keep the wind out w/ its tight weave. It moves body moisture well, haven't had condensate on the inside at all. Haven't had long enough for durability issues, but I wouldn't run into thorn & bramble patch with it, nor would I rock climb in it. Has a soft hand, drapes well, matte color (not shiny) packs into its chest pocket, tech fit eliminates need for waist cinch cord, has longer tail, has funky foam hood drawcord (keep wgt down?), hood rolls inward to become part of collar w/ strap that snaps. If you already own tons of various weight baselayers, this maybe right to keep winds off, but if you already own Marmot DriClime jacket/wind shirt this may be a redundant piece.

I was looking for the lightest wind jacket I could find. The men's large actually weighs 5.2 oz, not the 3 oz advertised. May sound small, but if every item were off by this much, a "10 pound" pack would really weigh over 17 pounds.

I purchased this wind jacket to replace my older worn wind Jacket. It to was a Marmot model which other then the color is the same as the new model. The material is a little different as well. It feels thicker and heavier. This is a nice jacket but don't believe the 3.0 ounce listed weight. I weighed mine (men's size Medium) it came in at 4.5 ounces. My old model was 3.0 ounces. I think Marmot needs to update their weight listing on this item?

This is an easy review.... The Ion Windshirt is extremely lightweight, and it keeps the wind at bay so that my body's core can stay warm. Sometimes I wear it over my puffy jacket as well. With the correct features for its niche, it has no unnecessary bells and whistles. It does what it's supposed to do at a reasonable price; which is a lot more than I can say for a lot of hypey gear.

I really like my Marmot Ion windshirt. The Pertex Quantum material stops wind and rain cold, and yet still breathes well enough for high exertion at moderate to cold temperatures. At only 3 or 4 ounces, I carry it in my backpack all the time, whether I'm heading on my next backcountry journey or just going to work. Plus, the jacket stuffs down into it's own chest pocket, so it stays small in your pack without using an extra stuff sack. Really, what's not to like?

When I received my Ion I was anticipating another excellent Marmot product. It looks great, has a tie for the hood, well made, Quantum Pertex etc. However, both my wife (who has a Houdini) and I tried it and we both were able to create considerable condensation inside. I tried several shirts underneath and only ended up cold, as well as, wet. If you want a very light and water tight jacket that you won't be active in, this may be it.

I have found Marmot Ion Windshirt well designed and truly light, but it fails to allow perspiration to pass to the external side. I used it for hiking and, after wearing it for a while, my t-shirt became damp. As my arms were bent, sweat began to pool in the jacket’s sleeves – this, while the external part of the jacket appeared to remain almost completely dry. I was shocked by a stream of sweat, which escaped from the jacket when I straightened my arms. I was not aware that a permeable material was capable of holding water so well.

I love this windshirt. I packed it in for a 4-day backpack followed by a 3-day trip and used it both times. Great wind resistance. I also used it in the mornings when it is more chilly, instead of a long-sleeve shirt. I used this jacket as a wind jacket, warm up jacket, and long-sleeve top, all this for 3 ounces - amazing. The full zip allows one to wear it backwards in the morning and then remove it on the go and stuff in backpack pocket without removing the backpack. I love this windshirt!