bikebreak

Summer is here, I find my core temp feels higher and I'm going through water much faster.
I find once I warm up I am running my jerseys at least halfway unzipped, and don't want to give everyone a show.

what do you suggest for an ultra light well ventilated jersey?

EastCoastDHer

Sorry if this doesn't help much but the only jerseys I've worn are all from my shop/sponsor. They work ok for me. What I've found really helps is increasing my water intake until my urine is almost clear or clear. If I have a longer than average ride or a heat wave coming up I'll drink more water starting the week before.

I've always sweat a ton. I'm not overweight or out of shape it's just my body genetics. Some people just naturally produce more sweat and/or operate at a slightly different temperature. I was born in South America so I can understand that my body sweats more based off genetics and the climate of birthplace.

Whatever jersey you choose look for no cotton as it absorbs moisture. Polypropylene or spandex should do, the key is pulling moisture off your skin.

Marcus_Ti

High heat and humidity? There isn't really a best. They'll all be sopping wet rags and fail at wicking in no time.

BillyD

I like sleeveless when it's hot and sticky. Doesn't necessarily have to be a cycling jersey, so long as it's not cotton . . . light, airy poly will work fine.

shelbyfv

A base layer seems helpful to me, though not everyone likes them. They are inexpensive and worth a try. I like loose fitting jerseys and I think the tighter base layer provides some wicking/ cooling even in high humidity, at least while in motion. Sopping wet pretty quickly, regardless.

rpenmanparker 

I just picked up three sleeveless Louis Garneau jerseys from Competitive Cyclist for, I dunno, about $40 each. Very, very nice. Really attractive color combos. Quite cool. My only complaint is the back pockets are slightly narrow.

bianchi10

Rapha climbers jersey

gsa103

LG carbon jerseys are very light. Can't comment on humidity though.

diphthong

rapha superlight jersey w/their merino wool shortsleeve or sleeveless base layer

floridamtb

Champion has some good summer jerseys that our team has ordered, they have some with a high SPF factor, not sure if it really helps though. Note I'm in south Florida so I wear the summer jerseys year round and none are super cool though

WalksOn2Wheels

It's not cheap, but Rapha has already been mentioned twice. I will add that any of their Pro Team jerseys will be awesome. I've ridden most recently in 95 degree weather with a mostly black pro team jersey and it was awesome. If I had the cash, I would buy their climber's jersey, but I don't... stupid me had to go and start buying a house.

I also have a Castelli Climber's jersey as well. That works really well. A fair bit of it is also black and has given me no issues in the Texas heat.

For the love of all that is holy, do not buy sleeveless. People will laugh at you. But if you're not vain like me, sleeveless is a practical option.

FLvector

Look for a jersey that describes their fabric as lightweight and super breathable - a fast wicking performance fabric. There's a ton of them out there, but don't cheap out on it. There is a difference between the low and high end fabrics. In areas with high humidity such as FL, I don't believe a base layer helps at all. The material can't wick away the sweat as fast as it accumulates. I'd think that base layers work well out west, or in other areas with better evaporation rates and lower humidity. I prefer a tight fitting jersey that doesn't flap in the breeze.

shelbyfv

I'll echo what has been said about sleeveless jerseys. Most cyclists view them as triathlon specific. In other words, if you show up for a group ride in one, you may get some snickers. I doubt there is any good reason for this, nobody says anything when women wear them. Just one of those things that may or may not matter to you.

therhodeo

Not a good metric for judging acceptable apparel.

andr0id

I wear sleeved and sleeveless.

You can't race in sleeveless, other than that, nobody cares.

The in-r-cool stuff from PI works pretty good, it's super thin and wicks fast. Still gets soaked when the humidity is 88%.

JerrySTL

I have one lightweight jersey that was the prize for doing a 5 century challenge. I don't know which brand it is; however, it's thin. And it doesn't have much in the way of sun protection. I found that out when I got a minor sunburn on my back.

One thing that I do differently in high heat is to go back to regular shorts. Bibs seem to be much hotter for me.

Shimagnolo

I have a pair of long sleeve summer jerseys I bought from Performance a couple years ago.
They are a mesh-like fabric that lets the breeze blow through, but also block nearly all UV.
I LOVE them!

I can't find them on Performance right now, but Boure has a similar product.
Look at the "UPF-28" jerseys: Men's Cycling Jerseys - Bouré Bicycle Clothing

Just found the Performance jersey: https://www.performancebike.com/bikes...400061__400061

bikemig 

Not a jersey but I like wearing one of the light weight headsweats in hot weather (headsweats is not the only company making this). Keeping the sun off your head and back of your neck is a good thing. Plus if it's hot, I like getting it wet from time to time. Also I'd avoid a sleeveless jersey; sunburn is not your friend.

Garfield Cat

Yes, tri jerseys. What you are looking for is a Triathlon top. There are two versions: tank or singlet. Just depends on the cut and the back. Some triathletes prefer less material in the back. If you sweat a lot, its about how much you sweat and how much wicking material there is. Wicking material can only go so far. That is, material cannot dry fast enough to overcome a sweat hog. So the solution is...less material in the back.

If you use a Camelback for hydration, it would defeat the purpose of a Triathlon specific jersey.

If you do get a Tri tank top (less back material), go for a solo ride or two and get used to it. If you like it, then you won't care what other people think in a group ride.

I have a few from TYR. They moved their headquarters from Huntington Beach to Seal Beach. Twice a year they had a parking lot sale and that's when I bought the TYR Tri jerseys. But TYR has a sale going on now at their online site.

KenshiBiker

I also have the Climber's jersey. There's not much fabric there, and like the rest of the Castelli line, what is there fits fairly snug (European cut). I've worn it on one 80+ mile ride where the temp topped out at 104 deg F (according to Garmin). I don't know that it was that much cooler than any other jersey, but at that temp, every little bit helps.

Drew Eckhardt 

Boure's jerseys are made by Voler. Those are probably the Genesis fabric.

Fastfwd01

Yeah, I bought one for the upcoming Hotter Than Hell 100 in Texas next month. Finally wore it last weekend and I'd say it doesn't hurt at all.... pretty nice actually. Very breathable compared to practically anything else I have.

therhodeo

Its not humid in Wichita Falls though. And its rarely super humid in OKC. We rode when it was 110+ in Stillwater all the time and the heat index was often below the actual temps because of the humidity.

WalksOn2Wheels

I've been tempted to post a topic asking if people ever regretted high end apparel purchases. I mean, you can argue all day whether or not that thousand dollar upgrade to lose a quarter of a pound off of the bike is worth it or not, but hardly anyone talks about the investment in your cycling kit which can have a big effect on your comfort.

For anyone that does summer riding, especially in the south where it can be 90 degrees in the MORNING, there is going to be a big difference between a 30 dollar, loose fit, lime-green budget jersey and a next-to-skin wicking fabric with lots of ventilation type of jersey. It can make a huge difference on a ride.

Not too long ago, I posted about a couple of Rapha jerseys that I own. One is a pro team and the other is a replica. While they both fit well, the pro team is basically the best thing I have ever put on my skin for warm weather riding. The replica? I think it needs to stay in the closet until fall. It happened to be the only clean one when I left for a 6 a.m. ride Sunday morning (when it was already 80 degrees out) and it was kind of miserable in comparison to my pro team and the Castelli climber's jersey. I could deal with it for a 30 mile morning ride, but if I knew it was going to be a 50 plus mile day, I would have made sure to have one of the other ones ready.

As I mentioned earlier, I was comfy in the mostly black pro team jersey on a 40 mile ride after work in the high 90's. But days later on the morning ride, where it went from 80 to 90 in a couple of hours, those 30 miles in the replica jersey were a lot less enjoyable.

Nachoman

That would be a good topic. I encourage you to post.