Under your jersey

[Owlie]

Wicking sports bra, sometimes with an additional layer on top of that. (Craft...thing in summer, Smartwool tank top in spring/fall, Craft insulating layer in winter. Both tank and Craft layer if it's REALLY cold.)

I imagine a regular bra with be...uncomfortable...and really nasty when sweaty.

[indysteel]

Sports bra for sure. I've become very partial to Ibex's wool "bralette." It's comfy and wicking.

[redrhodie]

Sports bra for sure. I've become very partial to Ibex's wool "bralette." It's comfy and wicking.

Me too! I love this bra. I can just get away with it. I'm a small c cup and could use more support. Actually, I'm not getting away with anything, but it's so comfy I don't care. I also like that I can wear it after commuting to work, and not smell.

[jessmarimba]

I can wear just about anything under my jersey when road riding - tight camisole, shelf bras in tank tops, bralettes, etc. I prefer something that's decent if I unzip. I could probably wear a normal bra for my commute if I didn't have a brutal 1.5 miles of uphill that ended at my office (I have occasionally worn normal bras on the way home on that glorious, glorious downhill).

Even though I'm an A cup, I need a pretty hard core sports bra mountain biking. Most of the trails near here are covered in grapefruit sized rocks...kills my boobs and my bladder. (And have I gotten any better at picking lines? Not in the slightest).

[Espresso]

Regular light cotton bra. I need to get fitted for a regular bra and possibly even fitted for a sports bra, but I'm nervous about it and until I have some incentive (probably never), I'm gonna keep procrastinating.

Sports bras always seem to be uncomfortable for me because I have breast tissue in one of my armpits (I call it my third boob ). Sports bras tend to pinch it against either my torso or my arm. So until I can find a sports bra that's comfortable, I'm gonna keep wearing the normal ones. And again, I hate trying on clothes so I probably won't ever actually go unless wearing a normal bra gets really uncomfortable.

Don't think I need a sports bra for the support (although maybe if I ever start mountain biking ?), but wicking would be nice. I think I'm too modest to unzip even if I were wearing a sports bra.

[Owlie]

Normally I can get away with a relatively light thing like this on the bike, despite my tendency toward "armor piercing nipples" (thanks, Catrin! ). It doesn't matter so much once I get moving.

Certain times of the month, though, I have to grab something much more robust, and even then, that doesn't always help. PMS boobs on an an aluminum bike traveling over a brick patch on the bike trail...

[nscrbug]

Definitely a sports bra. Infact, I own MORE sports bras than I do regular bras.

[ultraviolet]

I'm a big girl--40DD. I combine bras.

Before anyone jumps on me about the right sports bra being out there, believe me when I tell you I've spent countless hours (and not an insignificant amount of money) trying pretty much every sports bra I could find. I thought I had a winner with the Enell bulletproof vest model, but then I lost some weight and found myself in between sizes , where the smaller size was too tight around the ribcage to breathe and the larger was too loose around the top of the chest area to combat the bouncing--I think this has more to do with my own boob shape than any shortcomings of the bra...I still think it's a good bra, just not for me.

The combo I've settled on for the most comfort and support for me is a thin microfiber regular bra with a sports bra over it. The two that I use are the Microfiber Racerback from Fashion Bug (of all places) and the Champion C9 Cami from Target

I stumbled across that combo by accident, but it works for me. I'd actually worn the bra while out one day, then when changing at the gym didn't realize I'd forgotten to take it off and had just pulled the sports bra over it until part of the way through my workout when I realized I had no awareness of my boobs moving around. After that I tried it on the bike, then on my next run and was happy with the results. So, that's what I've stuck with. If it stops working, I'll go back to my search. But for now, I'm happy.

[Crankin]

I can't imagine wearing a regular bra for something where I get sweaty. I don't need the support, but I also have the armor piercing nipple issue and since I don't go bra-less in regular clothes, I don't do while riding. I need wicking!
I bought two Ibex bras this winter for x country skiing, but they still itched me a bit. I can take it for the winter, when getting hypothermia because my bra is not wicking enough is an issue, but for now, my vote to goes the Handful bra. It is so comfortable, has removable pads and doesn't dig into my ribs. I need to buy more. The 2 I bought last year are just about worn out. I have lots of other sports bras, but none are as nice.

[ultraviolet]

FYI, this one consists of two layers of fabric, both quite rigid. When I first got mine, I jumped up and down to test it, and my chest didn't move. It was quite strange!

http://www.teamestrogen.com/prodMC_350009.html

I've tried that one. On me, it gaps along the tops of the cups so I end up with a sore chest.

[meganm]

Sports bra, for sure. I can't fathom sweating on a climb with an underwire digging in!

[ny biker]

Sports bra. I do not want to sweat that much in a regular bra. And I do tend to unzip the jersey all the way when I get hot.

When it's really hot I wear a cycling tank with a built-in shelf bra.

For cooler temps, I would like like a wool camisole with a shelf bra, and/or a wool sports bra.

[bmccasland]

This is couched with the fact that I last did my road biking in hot country...
I wore a sports bra, and specifically looked for those that wicked really well (NO cotton).

Now that I'm in cooler climes, I'm not certain if I'll be as picky, but I do have several sports bras in the drawer.

[indysteel]

Sports bra. I do not want to sweat that much in a regular bra. And I do tend to unzip the jersey all the way when I get hot.

When it's really hot I wear a cycling tank with a built-in shelf bra.

For cooler temps, I would like like a wool camisole with a shelf bra, and/or a wool sports bra.

My wool Ibex bra is comfortable in hot weather. It's actually really light. Granted, I'm small chested and need little support, but I almost don't know I'm wearing it. I can wear it multiple times between washings, too, which is nice on trips when I don't want to bring a bra for every day.

[Trek-chick]

+1 on the sportsbra.