Arc'teryx  Aerios 5-Panel Cap

Like the ultra lightweight construction. Was handy for backpacking. Wish it came is XS as the s-m is too large for my female head and looks quite wonky for such an expensive item. What really bugs me is that care instructions forbid washing it, so here I am, stuck with a hat full of salt after the summer adventures, not sure how to clean it so the materials of this expensive hat don't decompose on me.

The hat is extremely lightweight, and now other hats feel heavy in comparison. However, the S-shaped hook for adjusting the size fell off during the second time I wore it. Could you please let me know how I can obtain a replacement part for this?

Lightest hat and most breathable hatI’ve ever owned extremely packable, have multiple technical hats. Miriam Miriam did you stick you’re looking for the best option possible regardless of price stop thinking and buy this one now.

Great looking hat! I love the colors, love the fit, and love how lightweight it is. HOWEVER, it is actually incredibly hot. I don't find it breathable at all. Far less than any other hat I own. It's likely because of how lightweight and compact it is. No air gets through anywhere. I can wear it in the winter to keep my head warm, but it's far too hot otherwise. I wish it came with a mesh back paired with the same lightweight material. Also, as others have mentioned, you can't wash it and you can't stuff it in a bag. If the brim gets folded, it won't regain it's shape.

Good hat until it deforms because as the instructions say "only surface clean" and do not wash... hmm what happens when the hat becomes soaked in sweat and dries in variable climates? It'll get deformed. How do you surface clean a hat that's been soaked in sweat??? Specifically in my case the part that gets deformed is most likely the fabric on the underside of the rim. It looks like it shrunk a tiny bit and now the rim is permanently deformed. What kind of running/sports hat works like this??

Good design, fit, and materials. Super light and incredibly breathable, by far the most breathable hat I’ve found. Might seem like a petty complaint, but the logo fell off after the second use. For this price the branding should not be delaminating immediately. Zero support from the folks at the store when I tried to return it. Arcteryx really stacking up the L’s here lately. Another dud. Think I’m done with this brand.

I want to like this hat and there is a lot to like. The fit is fantastic, it's VERY light weight and the design is superb. Unfortunately, it doesn't allow air to pass easily and I find that it runs hot. I have the wool 5 panel hat that I find myself choosing over this even on really hot days. If a ventilated version of this hat were to be made, I think it would be one of the very best.

This is the most comfortable hat I’ve ever owned, and believe me… I‘ve bought A LOT of different hats over the years. I bought a second one in a different color and might even buy a third. Extremely breathable, the material is thin yet seems to be very durable, it fits well and keeps me dry. It’s everything you want in a hat! I wish I would’ve discovered this product sooner!

The hat is an awesome light weight option when you want to keep the sun off and the weight off. It's proven to be unexpectedly durable given the light weight, and easy to keep clean after a rugged adventure. The clasp in the back is a bit finnicky and probably the primary point of design that I would recommend Arc'Teryx explore improving.

I had the previous version and loved it, for climbing, casual use and trail running. When i lost it wanted a replacement. Too bad they added the big text underneeth the hood, which i don't like, even though its kinda hidden. Light, fast dry and good looking.Get rid of the big text and it's a 5/5/ again (like the old version).