All the jackets I have found are thick. This one is so loose and light. I don’t know who made it. It says Performance. The only one I have of this kind.

REI has - or used to have - very light wind jackets.

I'd also like to know if anyone can find lightweight wind jackets that aren't in OPTIC YELLOW. Like plain yellow isn't good enough?

That looks thick to me. How about a useful photo?

As in Performance Bike? https://www.performancebike.com/ Bike Nashbar may be owned by the same company and sells the same and similar products. https://www.nashbar.com/

That said many others sell light wind jackets and wind shirts. I often use ones that are not cycling specific. Some of mine were sold as hiking or trail running gear. They aren't what you want if you are trying to be aero, but I wear them for trail riding and touring.

I’ve bought a couple pearl izumi windbreakers on eBay for around $20 that would probably fit the bill. But honestly there are lots of light windbreakers out there, pretty much any cycling apparel company makes them.

PI has a variety and they are readily available. I have a dark blue one and the crazy bright green. The sleeves come off the green one leaving a vest with a useful pocket in the back. It's still crazy bright green though.

Check out Voler

What does the one in the picture weigh?
I have a Patagonia wind shirt that weighs ~115 gm, or 4.5 oz. depending on whether I'm north or south of the Canadian border. It is blue.

Aero Tech Designs

I bought a Baleaf hi-viz jacket a few years ago. It's still going strong, and it's available in several colors. The arms zip off; that's a feature I've used again and again. Amazon or, probably, ali-express. On Amazon, it now costs more than Aerotech's, though. The Baleaf doesn't come close to race fit, if you're built like the normal serious bike rider. For that, Voler or Aerotech.

How about a Sportful Hot Pack Ultralight jacket. Just 50g and packs effortlessly into a jersey pocket.

https://road.cc/content/review/79935...ralight-jacket

I carry one as an emergency wind/rain jacket and it works very well. Also good for early summer morning starts when warming up.

My very light nylons wind jackets are made by Canari. Not super expensive.

It is super super thin. Can just fold it up like this with ease.

Pactimo, $52 shipped. Canari alos makes a lightweight one, I've got both.

Pactimo, be SURE to order a size or two larger than normal. I've got a 43" chest and a 3XL fits, go figure.
https://www.pactimo.com/products/men...3&gad_source=1

I have a Montane wind jacket that folds down into a bag the size of my fist. The last time I used it was when I arrived at the top of the Col de Pailhers.
I was sweaty and it was cold, patches of snow all over the place

Wut

So, small enough you can crumple it up and stuff it in a jersey pocket? If so, cool! 😎

By asking to take a better photo, that means to lay the garment on a hanger, or lay flat on the ground with the arms extended, so we can see the details and shape of it. All we see now is crumbled bit of fabric. Wind jackets is very vague term and they come in endless shapes and sizes, so showing the back tag, as well as the one on the side seam would at least help identify the one you have.

^^^You are asking too much of this OP.

The Patagonia Hoodini is what you’re looking for. I’ve got one that’s at least 10 years old. I use it on rides because it does everything a vest does plus sleeves. It’s not aero but I don’t think we’re worried about that here.

It’s remarkably durable too, I’ve spent more days climbing rocks with it on than riding. It’s still holding up. I slept in it once on an unplanned bivvy, I survived.

When at REI or other gear stores, look at the windbreakers near the backpacking stuff or the running gear. They’re all pretty light. They take up no more space than a vest in a jersey pocket.

The cycling specific ones are a lot heavier. Probably to prevent flapping or to accommodate mid winter riding. Only really good if you don’t want to take it off.

For me I find the Anorak design the best in ridding. The front is completely wind proof and they pack small. I am selective in getting the 100% Nylon type as they are not water proof and breath well. The only thing missing is armpit vents. On one of my Anoraks I just sewed in some zippers. Nothing fancy.

Get your Anorak large so it can go over your clothing.
Bright colors are fine but get dirty easily and are hard to clean.
You want it made of thin material so it packs easy.
Dont get water proof. If you need rain protection get a rain jacket.
Dont get Polyester as it will feel like you are wearing a plastic bag.
Dont spend allot of money on it. Remember that you dont take anything in the field you cant afford to loose.



100% Nylon Packable Wind Breaker Anorak - 20 USD when you find them and can be hard to find.

RATS - Just went on line and cant find the 100% Nylon ones for less then 40 USD. Really there is not that much to them. Its just a wind Breaker.

You must be new around here.