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Keeping arms/legs warm to keep hands/feet warm

Old 01-08-22, 09:27 PM
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scottfsmith
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Keeping arms/legs warm to keep hands/feet warm

I take a hot shower after every winter road ride and it is pretty easy to notice what got cold on the ride: it hurts so good when the hot water hits those spots!

Anyway .. using the shower test I have been noticing that my arms and legs are surprisingly cold after winter rides. My hands and feet can have problems freezing, and I now think the cold arms/legs are a big part of the problem. So, I am more thinking that I need to put more coverage on the arms/legs. I did an experiment recently where I added arm warmers over my jacket, and my hands didn't freeze. I never did that before, arm warmers I would only put on bare arms with a short-sleeve top. Today I put on my Rapha Deep Winter socks and pulled them all the way up to my knees. My toes were warm the whole ride today. I didn't have the arm warmers on though, and my fingers got a bit cold. My core was a bit on the warm side, my cellphone was dripping when I pulled it out after the ride.

What I am generally wondering is it seems like the standard winter road bike outfits are not putting enough warmth on the arms/legs? And maybe some compensation for that is needed? My winter gear is mainly Castelli stuff, for down to about 20F (we rarely get colder than that). I am wondering if it would be worth it to get some larger size arm warmers I could regularly put over my jacket. Also on really cold days I might want to put some big leg warmers over my tights? If I just put more full layers on my core is going to be roasting while my limbs are freezing.
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Old 01-09-22, 08:47 PM
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interesting plan
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Old 01-09-22, 08:58 PM
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Unlined tights
I have unlined tights that I wear over bike shorts. I have a very thin Pearl Izumi one, and a medium weight PI with a fuzzy lining and ankle zips.
For me,
Approx low 50s to even 65F: The thin tights are fine. Perfect in mid to upper 50s, tolerable for this 50F to 65F range.
Approx low 40s to low 50s: I use the medium tights. Good.
In the low 30s, where I rarely ride: I tried the thin tights over the mediums. It worked! Not too bulky and much warmer.

~~~
Layering!
I have two Patagonia base layer long sleeve shirts. It's extremely thin fabric, which doesn't seem that it could much at all. Way thinner than t-shirt material, for instance.
But wearing both of these under a short sleeve jersey, I'm warm in the low 50s. A single base layer is great for upper 50s to 70F, it's so breathable.
Stacking layers multiplies the wind blocking effects. It's way more than 2x of a single layer. I assume the wind is slowed way down through the first layer, so then the second layer has very slow airflow through.

The two thin layers under a wind shell jacket is very nice at 40F to 55F.

~~~
Convertible jacket
The wind shell is also PI. The sleeves are connected by a shoulder yoke, and zip off to make a nice vest. They pack into the rear pocket of the vest.
So when it warms way up during a ride, I can switch to a vest, or even leave the sleeves at home. (A local rider will sometimes pull the sleeves on without zipping into the vest, so they are instantly removable! Yeah.

The big advantage of this jacket+sleeves is the huge mesh vent under the sleeve yoke, across the top of my back. So on climbs, I can unzip the front zipper most of the way and get a giant airflow from front to back. Much less overheating now.

Last edited by rm -rf; 01-09-22 at 09:02 PM.
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Old 01-10-22, 11:20 AM
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What you are describing is not too different from my own layering setup. The problem with generic layering for me is the core relatively gets too warm compared to the arms&legs. For that reason I never use vests, and I also never use short-sleeve under layers unless it is under a short-sleeve top.

One thing I like that you mention is unzipping on the climbs. I have been doing more of that but not always and not most of the way down. It helps balance the core vs extremities temperatures, you can overall dress a bit warmer that way which means more layers on the arms and legs as well.

Honestly what I really would like is a jacket and tights manufactured with doubled insulation in the arms and legs areas only. Then I would be more balanced temperature-wise.
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Old 01-10-22, 11:33 AM
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I'm one of those people who can't ride in the cold but I did see a few bicycle riders in Denver using Snow Machine suites for warmth. They looked over stuffed and hard to move in but all of them had a smile...
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Old 01-10-22, 01:19 PM
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Generally I don't worry much about arms and legs. If hands and feet are cold, addressing those with proper gloves/footwear/socks is the first line of defense. And as is true generally, making sure you're wearing the right headwear. After that it would be good nutrition and making sure I'm putting out enough energy. Legs and arms would be after all of those things.

In winter riding, there's a fine line between working hard enough to stay warm and overdoing it so that sweat becomes your enemy. There have been lots of times when my hands were cold and then we hit some hills and put down some energy to get over them with some spirit, and then my hands aren't cold anymore.

Probably there are fewer hills in Maryland than in Minnesota, but you get the idea.
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Old 01-10-22, 02:02 PM
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fwiw - I'm a big fan of zip-necks & pit-zips
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Old 01-10-22, 03:44 PM
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Today the weather was very similar to my previous ride which I mentioned above (both around 30F); as an experiment I wore an identical outfit except I had a less warm jacket but with arm warmers on top. This is to achieve the goal of more warmth on extremities compared to core. I kept the jacket zipped up the whole time since my core was not overheating. My fingers were warmer, only one finger was cold as opposed to many last time. So, it seems like a bit more data in favor of putting relatively more warmth on the arms/legs.

Originally Posted by MinnMan
Probably there are fewer hills in Maryland than in Minnesota, but you get the idea.
My impression is Minnesota is a pancake compared to Maryland. Maybe I am mixing it up with all the flat states around it though. My rides have about 100 ft elevation gain per mile on average: 25 mile ride, 2500ft elevation gain kind of thing.
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Old 01-10-22, 03:50 PM
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Originally Posted by scottfsmith
Today the weather was very similar to my previous ride which I mentioned above (both around 30F); as an experiment I wore an identical outfit except I had a less warm jacket but with arm warmers on top. This is to achieve the goal of more warmth on extremities compared to core. I kept the jacket zipped up the whole time since my core was not overheating. My fingers were warmer, only one finger was cold as opposed to many last time. So, it seems like a bit more data in favor of putting relatively more warmth on the arms/legs.



My impression is Minnesota is a pancake compared to Maryland. Maybe I am mixing it up with all the flat states around it though. My rides have about 100 ft elevation gain per mile on average: 25 mile ride, 2500ft elevation gain kind of thing.
100 ft/mile is pretty hilly, for sure. There are parts of Minnesota that are quite flat, but many parts have plenty of hills. But more like 50 ft/mile. To get 100 ft/mile, you have to go to the driftless area of Wisconsin, an hour or two away from the Twin Cities.

anyway, we digress. Churning out the energy, climbing or otherwise, helps keep the hands warm.

Also - wind. If you don't have bar mitts or very wind-proof gloves, then air speed has a significant effect on hand comfort.

The core is seldom an issue. And though I don't discount your experience, in my experience, arms and legs are not a concern and have little effect on whether my hands/feet are cold.
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Old 01-10-22, 04:20 PM
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I have spent many years focusing on my hands and feet and not on my arms/legs, and the entire clothing industry also has a similar focus. So, I'm not really expecting a lot of appreciation for what I am talking about.

Let me try a couple more points though.
  • There is a gradient of temperature from core (warm) to fingertips (cold). The warmer the stuff in the middle, the warmer the blood will be when it finally reaches the finger tips. It is similar to a furnace duct, the furthest ducts will be much cooler due to temperature losses along the way. Some people insulate their furnace ducts for this reason. I am just applying this principle for the human body .. raise the arms/leg temps by 5 degrees and you will get several degrees warmer in the fingers as well.
  • The arms and legs are not "complaining" so people don't generally think they need more insulation. Fingers and toes scream pain when they get cold so there is big motivation to protect them.
  • Yes you can keep piling on more core layers, but at some point the core starts complaining it is too hot... even when the extremities are far too cold. It seems odd that the core does this, but it is part of our instinctual temperature adaptions which focus blood to the core in cold weather. So, adding more core layers is not the answer. Adding more to hands/feet of course will help, but it gets harder as it gets colder. It might be worth adding more insulation to arms/legs in place of one more increment on the hands/feet.
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Old 01-12-22, 11:59 PM
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i got a sewing machine so as to experiment with different clothing,

one thing i did was use different material for the arms , in this case cotton sleeves with the rest of the jersey being wool.

works pretty good, i see no reason why you could not reverse this and use wool for the arms and maybe poly for the rest,
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Old 01-13-22, 07:33 AM
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Cool I didn't think of that. We have a sewing machine which I vaguely know how to use.

My current plan is I ordered some wool arm warmers sold by DeFeet (these guys), they are designed to go under your jacket. I also realized I could wear my existing arm warmers under my jacket instead of over, they are a bit too tight over. So, on the next cold ride my plan is to have my wool long-sleeve underwear, then these DeFeet guys (or perhaps the other way around depending on how tight things are), then my Pearl Izumi arm warmers and finally a jacket over that.

It is not so hard to put on the arm warmers but to speed it up I could in theory sew them in place.

My legs (and feet) have been very warm with my knee-length socks, but I also have a non-padded pair of insulated tights which I could put on over my padded tights for even colder days. Tights don't add much to the core so no overheating issues there.
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Old 02-08-22, 08:50 AM
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Originally Posted by scottfsmith
My current plan is I ordered some wool arm warmers sold by DeFeet (these guys), they are designed to go under your jacket. I also realized I could wear my existing arm warmers under my jacket instead of over, they are a bit too tight over. So, on the next cold ride my plan is to have my wool long-sleeve underwear, then these DeFeet guys (or perhaps the other way around depending on how tight things are), then my Pearl Izumi arm warmers and finally a jacket over that.
Following up here in case anyone is interested.. The DeFeet arm warmers I am liking a lot, with them I feel like I have a very good "balance" of layers in terms of not too hot or cold anywhere. I have been adding them when it is below 35F or so. Note they also add to overall warmth and seem to be comparable to a light short-sleeve underlayer so overall layers need to be balanced with that in mind. So far I have used only them (single layer of arm warmers, not two) down to about 25F, but for even colder I might put my Pearl Izumi arm warmers over them. The only downside is the DeFeet are wool and are a bit itchy (they are the bottom layer, they are more snug than my wool long underwear layer). I am fine with it though and wool softens over time so should keep getting less noticeable.

In terms of how my hands are doing, with only gloves I am fine for several hours down to 25F. I am not biking at colder than that, we almost never have a day when the high is below 25F and I pick the warmest part of the day for winter rides.
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Old 03-01-22, 05:29 PM
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No matter what I do I usually end up cold later in a ride. I think a big contributor is that my base layer and gloves get wet accelerating heat transfer. For my hands I can turn on my heated gloves. That's been working so well I'm very tempted to get a heated vest to boost my core temp. My body temp crashes about 15 minutes after I stop riding in the winter. That causes problems if there is a post ride social, so I tend not to stick around for them. It also discourages me from winter rides where I need to drive to the starting point.
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Old 03-01-22, 08:46 PM
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When I have a ride like that I just add an additional layer on the next ride at the same temp. If anything besides finger and toe tips are too cold I just need more layers.

The base layers always will get a bit wet, not much that can be done about that other than making sure they are nice wicking ones. I use the woolen Flanders Warm with Turtle by Castelli when it is below freezing. The turtle helps keep heat from escaping at the neck.

Some people are just more prone to cold or more prone to sweating or both so you could well have an innate disadvantage. HotHands makes a chemical body warmer which could be a cheap way to test if a battery vest would be worth it. I generally avoid those chemical warmers but are good for one-offs every now and then.
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Old 03-02-22, 07:47 PM
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I find that my hands and feet stay warmer if they are not stuffed into tight clothing. It's tempting to put on two pairs of socks, for example, but if the pressure cuts down on the flow of warm blood, the feet will be cold. Same for the fingers. Loose is better.
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Old 03-04-22, 07:29 AM
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I have came to the conclusion this discussion is just like recommending saddles its just to full of variables.

When its cold here like single digit cold and teens I insulate the core heavy and try and keep the pace up. I try and stick with wool for base layers below 20. once its like 25 in above I start shedding layers pretty quick and just keep the pace up.
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