It keeps the sweat off you pretty good. U.S. Army used to issue it to us, until someone realized that it was flammable and melts to your skin when your in a fire.

Hot weather and cold weather stuff is great

Love allUnder Armour Products!!!!! No restrictions and lighter than any cotton items I have. I continuously seem to upgrade my collection of Under Armour every time I turn around. Great for all weather!!

Great product. Works well under the vest, and even ployester and rayon shirts. The only thing is that the white shirts tend to stain after a period of time. I reccommend the black v-neck for under a vest. It does make a difference on a hot day.

I have used this product for years, I have about ten t-shirts by Under Armour and would not trade my oldest one for any other brands newest one. I work in a stuffy jail where you can sweat like a hog after a code and or fight with an offender, and my Under Armour truly helps to wick the sweat away from my body and making it easy to dry faster.

I really like the long sleeve versions. I use these to stay warm in the cold MN nights. The knock offs are ok but not the real true thing

Works great under body armor. I won't even consider wearing a cotton shirt anymore.

I switched from cotton undershirts to Under Armour and never looked back. Keeps you warm in winter and cool in summer. I don't like wearing the bulky winter jacket we are issued, with long sleeve under armour I don't need too. Under Armour holds up well too, I still have a shirt I bought back in 01.

This is great stuff under your uniform, I used to wear cotton, till I picked one of these up, now it's all I ever wear on duty, and sometimes even off.

Can't beat the "cold gear" for those below zero nights.

I like the variety of womens items under armour has. Great for when you are on duty (the best in 125 degree heat while doing transports to and from Death Valley) and its the only thing i will work out in. Cute colors, matching outfits lol.

Under Armour shirts and underwear rock! They keep you cool, such as in Iraq, and they also have cold-weather items as well. You cant go wrong with Under Armour!

I love the one I have (a gift), however I can't afford the real thing on a cops pay check.

My husband wears these and I am always stealing them to wear myself. Love them!!

What a great all around product. I wear everything. Little expensive, but you get what you pay for.

I love all underarmour wear.It keeps the sweat offand the product last.

THE BEST!!!!!

Best thing since corn bread. Wears great under vest.It does what it is made to do.

Makes me fell all sticky, don't like it...100% cotton all the way

I am a huge fan... Coldgear is perfect for these cold wisconsin winters

Love my Underarmour would trade it for anything. Shirts for on duty and off duty along with PT gear. Looking forward to getting more. Maybe the outerwear.

great products but a bit pricy

Works well but hits the wallet hard. They've been around long enough to drop the price a bit. You can't ever find this stuff on sale.

Very comfortable. especially under body armor.

I just didn't believe this stuff could be all that great until I tried it myself. Now, I'm hooked. In the sub-zero temperatures we've had this winter, Underarmour has saved my ASS from getting frostbit on more than one occasion!

Have purchased several different items made by Underarmour. I have no complaints with the quality of the clothing. I recently purchased some socks and they are great.

Their winter gear is amazing. I have worn it on duty and while I run. It has keep me completly warm. I run in weather sometimes that is in the teens and even lower with the windchill and this underarmour keeps me warm. All I had on was the underarmour, a tee-shirt, and a lite fleece. The wind did not penetrate it. Just like it say's armour!!

A little expensive but well worth the price...I have both cold and heat gear products...great for four season police departments

Very good equipment to have.

One of the best perfomance gear out in the market today, Recommended....

The composite fiber king. This stuff is incredibly comfortable and pulls sweat away from the body and insulates fairly well. The cold weather variant is just as good as thermals, the main advantages are the light fabric and the quick drying. Just be sure to wash it.

I love all the USMC products from Under Armour...I where the socks, and shirts every day with my camies...the shirts look much better then the standerd isued..

Bought a pair of knock-off compression shorts for running around at work and for hiking (if I can ever get around to it again), then I bought the original name brand UA version, it's alot more 'civil' on me and I look forward to possibly getting out of the house and blazing some trails in them.

Pricey but can't be beat. In the sweaty south you can count on breaking a sweat but this stuff will dry out in minutes compared to cotton keeping you damp and uncomfortable.

Great stuff! I think the tee's are really comfy.

A life saver in the summer heat

I love all things Underarmour, I don’t know how I survived before it.

Great product, works well in every season.

Over priced. The knock-off, lower priced, clothing usually works as good as Under Armor. Bottom line is wether it is the real deal or a knock off, it helps a lot wether it is cold or hot.

i wear some form of underarmour every day im on duty and have done so for 6 years. ive tried the knock offs but nothing beats the real thing.

This is my first winter on the job and it was a terrible one but UA made it liveable. Keeps you warm when you find yourself outside your squad on a cold night. Can't wait to try the cold gear this summer. At first I tried another brand because UA is expensive but the generic stuff doesn't compare. It's well worth the extra cash!

Freaking love it!

In the summer nothing beats it. 5.11 is up and coming with their products, and has replaced my winter wear

The muscle mapping shirt wears well underneath your vest and is very comfortable.

Outstanding, sweat wicking under shirt!

Love underarmour were on duty as well as off and there is so much selection

Expensive but great for duty, hunting, and work at home. It's amazing that such a little layer of cloth can keep you very warm in the winter and cool during the summer. They have a great selection for all activities and temps. Very nice product.

The knock offs work just as good. Under Armour is over price. Generally twice that of the knock off.

love all of the underarmour products, the new shoes are sweet too. Keeps you dry and warm.

over priced d knock offs work just as well

Not availble here until late last year and then at near $100 a T-shirt. I got some shipped out from the US and in summer, won't go out without wearing it. It really does the job.

Absolutely love this stuff. it's performance is undeniable.

A must have if you are wearing soft body armour in hot weather!

Underarmour is a great product, but the price is a little steep. There are others out there that can do the same for you, without the price. I would never wear any other style of shirt under my vest again since I started using the "tight gear". Use both cold and heat gear.

Hot and cold gear works well in any environment. many different styles and colors to personally appeal to every user

keeps you warm in winter and keeps you cool in the texas sun! awesome product

THIS IS A GOOD PRODUCT FOR REGULATING BODY TEMPERATURE IN SUMMER AND WINTER MONTHS, BUT I DO LIKE THE 5.11 VERSION BETTER BECAUSE OF THE QUALITY.

LOVE my under armour. Especially working in So. FLA

Love my underarmour

I remember when the company was sstarting out. Bryan Offutt and crew were great to work with. The gear has definitely paiid it's dues. Took it to the sandbox many times. It worked great there as well as in the gym.

Good product.

under armour is very comfertable

Just bought some Underarmour running shoes. Very comfortable and supportive.

UNDER ARMOUR WHISKS AWAY THE SWEAT GREAT TO USE UNDER YOUR VEST. THE ONLY DRAWBACK TO UNDERARMOUR IS THE PRICE. ALSO AFTER A AWHILE THE STENCH STAYS IN THE MATERIAL.

Just don't get it near FIRE!

Great when it is cool outside but if you put it on and the weather warms up you will sweat yourself to death.

The cold weather gear is really warm, here in MN. I wear this and a winter vest cover, and I'm good to go, unless out for long periods of time.

It goes a long way to keeping you dry and cool, but in the long run it lets the vest slide around too much. Ultimately it's more uncomfortable to wear than a plain cotton tee.

Good stuff, I have bought many cheap knock off products from Walmart. I wear these for those really hot days!

Love it, especially the mock turtle for cold winter days. Goes especially well with a Starbucks Honey Latte.

SIMPLY THE BEST!!!!!!!!!!!!

I love the bra and shirts I purchased several years ago for the hot summer months. Would like to get ColdGear, but all of their products are still so expensive. Waiting on President Bush's economic stimulus gift to purchase more.

Great work out gear.

This stuff is great during cold weather it really keeps you warm and during the summer it keeps the sweat off. It is a little pricey but well worth it

I've got one of the heat shirts. It really helps when you have the vest on.

I love this stuff. Its great for under the vest. It also keeps me cool and the cold weather gear is great for the winter.

A must have item when wearing a vest in the heat of summer.

Must have in hot and cold weather. No other comes close.

In Texas' 100 degree plus heat and 80% humidity, this is a must. Never leave home without it. Very durable, mine last forever. Ive used the shirts, shorts, and underware.

Best Item I've found to wear under the vest in the heat of summer.

Under Armour is the best gear hands down.

I love underarmour. Dependable, launders well and fits well.

good to have one on on them long sunny days

I use the under armour loose gear and have enjoyed it. I was a cotton tee shirt person until I started wearing the under armour. I have also tried several of the other knock offs but have always returned to the under armour. It is the most comfortable of all that I have worn.