Best powersports base layers according to redditors

I was at Death Valley a few weeks ago backpacking the Cottonwood-Marble Canyon Loop.

We camped at about 1,000 ft. elevation the first night and had temperatures in the low 40s. The second day we ascended to a little over 2,000 ft elevation. We actually saw some snow/ice even during the day time. On this day, we camped at about 2,500ft and temperatures were in the mid to low 30s during the night. According to the ranger we spoke to at Stovepipe Wells, temperature lows were in the mid 20s at 3500-4000ft of elevation.

My gear included a 30 degree Marmot sleeping bag, with this sleeping bag liner. I slept wearing the following:

A body-hugging liner, t-shirt, sweater and a light hoodie and then slipped into my sleeping-bag liner and sleeping bag. With all of these layers, I was comfortable - but just barely. I slept well, but at one point, my hands were out of the sleeping bag and they got really cold in 20min. Had the temperature been lower by even 5 degrees, I don't think I'd have been able to sleep.

Having said that, with your planned gear, I think you are adequately prepared. December is pretty much the coldest month for DV, with Feb being warmer by about 10 degrees.

See: http://www.nps.gov/deva/planyourvisit/weather.htm

Keep in mind that this is shaping up to be a colder than usual winter for CA, so those temperature averages are slightly on the higher side.
I'm going back to DV in January and expect to be more warmer than I was in December, even if just slightly. If you'd like, I can give you an update after my trip, but for a final source of truth, you should call DV and talk to a ranger a week before your trip.

EDIT:

> 6'x8' Arrowhead Equipment silnylon tarp pitched low over my poles and affixed via 6.5" titanium stakes (unsure if these'll work in the desert or if I'll have to look around for rocks to pile over them...)

Your luck with stakes depends a lot on the terrain which changes a lot (also depends heavily on where in DV you are - it's huge!). Out first night, the ground was too rocky to dig stakes in, so we used rocks. The second night, we were able to dig in stakes. Both days were fairly windy (I'd estimate 20-30mph winds in the night). The first night when we were unable to dig stakes in, the tent was blowing around quite a lot while we were eating food etc. and not in the tent.

Feel free to ask me any other questions I can help you with.

Personally, I use the Neck Guard... http://www.amazon.com/FREEZE-OUT-Neck-Guard-Black/dp/B0096R0940

I don't ride < 32f since I don't like ice but even in the mid 30's things are warm enough.. I run my rf-1200 helmet with the chin skirt and the breath guard. Of course that means I have to think about fog (I don't run pinlock yet)...

One thing I just learned today... An electric jacket/liner works wonders.. Today was my first day with it and it was 39f and I just wore that and my Speed & Strength jacket over it and I even had my windscreen on the lowest setting so the air was hitting me right in the chest.. I had the heat controller set about 40% and even at 85 mph I was nice and warm... Normally my fingers would be cold etc but I found that keeping my upper body nice and warm helped keep other things warm... I didn't even wear my neck guard as the "Warm & Safe" liner had heat in the collar.

Get her a cooling vest. I wear one when I'm on my motorcycle and it's hot as fuck. Basically you soak it in ice water, then wring it out and put it on under any other shirts. Stays cold for quite a while. It's actually shockingly cold at first.

Only downside is it would probably make her look like she's sweating so bad she must be having a heart attack.

Also, back in the day my mom used to make these these maybe 1.5-2" diameter tubes of fabric, maybe a foot and a half or so, that were stuffed with this cooling gel (in self-contained things not just splurted into the fabric). You either dunk them in water, or freeze them, or whatever you can and then wear them around the back of your neck. She would send them to the troops.

http://www.amazon.com/coelacanth-R-7221-Coelacanth-Coin-Purse/dp/B005PP8V1U/ref=sr_1_1?ie=UTF8&qid=1342840756&sr=8-1&keywords=coelacanth+coin+purse

I have a coelecanth coin purse. It's just big enough for a few cards and some cash. There are no pockets or other stuff, it's literally just a pouch with a zipper.

I’ve used this pump for years, and I got it bc it’s the one they used at my local shop https://www.amazon.com/PedroS-6450500-Prestige-Floor-Pump/dp/B00IAOZ6YI/ref=mp_s_a_1_6?keywords=pedros+bike+pump&qid=1558700696&s=gateway&sr=8-6

For $10-30 less you can get a heated base layer shirt, which would do a lot more to keep you warm.