Well maybe. A severe cold.

too bad I'm jumping in on page 4, but I use under armor heat gear (compression fit) as a base layer and it's GREAT. It wicks as well as the jersey I wear over it, and it fits great so I hardly notice I'm wearing it.

Really, ditch the cotton. Wool may be wet but the lanolin coating the wool fibers does two thing, repels water so it wicks, passes through rather than being absorbed and soaked up like a sponge as happens with cotton. With cotton you just get wet against skin, that wet is in a sodden fabric with no air space hence a great conduit from body (skin) to air exists sucking out body heat. With wool the fibers do not absorb water, rather a space of air/fiber/water is formed creating insulation and warmth, even when wet. Once open to air evaporation of moisture occurs far more rapidly drying out quickly. I have been absolutely soaked in summer rides, sun comes out and within 20 minutes of riding, my clothing is completely dry. The lanolin, in addition to shedding or repelling the water from the wool fibers, also is a natural antibiotic keeping smell from bacteria way, way down. No stink, even after a weeks wearing in heavy sweating conditions. Try that with polypropylene or polyester and you would have to discard the fabric from smell even after washing.

UA coldgear long-sleeve compression under a long-sleeve jersey for low-mid 50's works great for me (I'm slender and not a big sweatbag); add a jacket if it's cloudy, windy, or dips down into the 40's. I usually don't ride when it's below-40; just too big a p***y when it's that cold...

I've gone hiking on hot summer days in a cotton T and the shirt can get really wet. Not horrible while walking, but can actually chill when I stop. On a hot day that's not horrible but if it's even a bit cool, like at elevation, it can be quite cold. I now have wool and synthetic shirts I wear instead regardless of temps.

I went for a ride while a student at UCONN one December wearing blue jeans, a flannel shirt and sweater. It started to rain, then snow. I was 15 miles out, soaked when I realized I was very cold and unable, no matter how hard I worked, able to generate sufficient heat. Turned back and got home, quite worried about hypothermia. No fun.

There is no need to "layer" if you use UA cold gear or nike pro fit. I wear either under my Capo Thermal jacket and I am fine for my winter rides. I wear that same UA or Nike under my soccer jersey and can run for the full 90 minutes and be fine.

In fact i just did the Spartan Beast Obstacle race on saturday in the pouring rain and wind with my UA on and it kept me from getting hypothermia

2 layers is still layering - it's just CA layering vs really cold places layering.

UA long sleeve compression top as a base layer has worked wonders for me. layer on top an icebreaker merino half zip and a rain shell is all I usually wear in the winter. Mind you in the PNW temps never get all that cold, its more the rain we have to deal with.

It gets into the 20's here i just dont ride when it hits that temp. Right now my mornings are around 35-37 and I am sweating with my coldgear and thermal jacket.

Isnt there a 41 rule wherein you're not allowed to complain about the weather if you live in California?

Naah, we complain about everything, even dirt on handlebar tape.

where did i complain about the weather? I simply said it gets into the 20's and I dont ride then. I dont ride because it's to cold I dont ride because medically I cant. I broke my leg 3 years ago playing soccer and when the weather hits the 20's my leg cramps up and becomes very painful

Don't get offended now but I count at least three complaints there. Quite alright since this is the 41.

I complain about it....and know full well that I have no right to!

im not offended and I think your missing my point. In my original post I simply stated that it hits the 20's where I live in CA ansd that i normally ride when the weather is in the 30's. However I was told I can't complain about the weather because I live in CA.

I simply responded asking how in my ORIGINAL post I complained about the weather. Even in my above post I didnt say I hated the 20 degree weather. In fact I love the cold, just medically some days are better than others. I do see your point though, however lets remember that just because one lives in CA doesnt mean that it isn't cold. I can drive 35 minutes up the road and be in a ton of snow.

I'm in San Diego, and even I think I have a right to complain about the weather.

Yeah. Because it's always 72 and sunny in California. All year round, all around the state.






Anywho, a Patagonia polypro baselayer, merino l/s jersey and roubaix knicker will do just fine for me down to freezing. Below that, a vest and tights. (Appropriate coverings for the extremities, of course.)

Weird. For everybody who seems to know exactly what should work for everyone else, there seems to be somebody who has tried it and it hasn't worked so well.

It also most seems like different people get different results a lot, and people have to try like a couple different things and should then use what works well for them.

I use UA gold gear compression for the base layer, long sleeve cotton shirt on top, then my long sleeve wind proof zip front jacket. It does the trick. When it gets really cold (sub 35 for me) I'll add a thermal between the UA and the long sleeve shirt.

I love you.

Everybody else is wrong,I'm right, end of discussion.

You use a wicking layer to wick the sweat right to the cotton shirt where it will...

My climate is milder than yours and the "Smart Wool" from REI. (I guess is merino is the same thing) Buy the t-shirt you will be utterly amazed!

Me, like the Dos Equis man don't always sweat but if I do I prefer Smart Wool.