This is my first experience with thermal shirts for riding.
The material and workmanship are excellent.
Went for a 30 miles ride in sub 50 F weather and it was very enjoyable and warm.
Sizing is weird given the amount the material stretches. Out of the box, it seems that only an infant would fit!
I am 5' 7"/180 lb and ordered a MD. Exchanged it for a LG and it fits well but snug. Should have gotten an XL. :-(

Seriously tho, I dig the ribbed parts of this base layer. Its supposed to make it last longer in the wear areas rubbing against the suit. The strategic points on the shirt also offers optimal sweat wicking properties. Im 5'7" 160LBS 41" chest and a MEDIUM fits me perfectly. Think of this as a VERY technical race suit condom.

The fit is very good. I am 6' 1", 195 lbs and a large was perfect. I have monkey arms and the sleeve length was still great. I'll be using this for riding as well as my winter sports in Tahoe. Delivery and customer service was fantastic.

I have many Dainese products and this has easily become one of my favorites. It is light and soft, the new style is cool too. This product keeps me cool under my leathers and wicks out moisture with ease. Highly recommended!! Great for riding in 40 degrees to 100+ degrees! Here in Denver we have some crazy weather so I'm always prepared. . I also recommend the d-core thermos for anything colder!.. Great new products!!

I am 5.8 180ilb athletic build XL fits me perfectly and keeps me warm. A must have for colder weather.

I havent been able to try this out in seriously cold weather, but it kept me warm at 38F, wearing just the D-core shirt, a t-shirt, and a denim jacket. I am 5'8" 160, and I bought the large. It fits fine, but I think a medium would've fit fine also. I'll definitely be buying the pants come winter.

Glad I read the reviews on this product as it runs small, I'm 6'3 200lbs and I got the xl/xxl top and bottom and they fit like a glove, very comfy, and keeps me warm, although I'm in LA so it doesn't get that cold but it's been in the 40's with a strong wind this week and these worked out just like I hoped they would.

FIT: Snuggly fit, not too tight, selected the medium (am female). Probably, the tighter the fit, the less wind/cold protection due to stretched material leaving wider gaps for environmental exposure. I typically run small or medium, get your larger-fitting size. Used Dainese chart to refer sizing; Height fell short, waist was within margins, chest fell short. Shirt stretched quite a lot from original "packaging" size, arms weren't too long for me. (5'1"). The shirt straightened over the matching pants quite a ways.

PROTECTION: Just tested for warmth, currently 60F outside and this alone kept me quite warm with the matching pants. Blocked wind well, though not completely. Worn as underwear and layered with other clothing, this will really keep in the warmth. Only quirk is that the decorative mesh sticks easily to velcro & similar materials, could be ruined easily - treat with care.

I recommend this over Alpinerstars Ride Tech Winter, returning that, for those more curvy looking for a thicker, warmer material.

I bought both the shirt and pants this summer so that I would be ready for fall riding. I am 5’ 10” 185 lbs. Shirt is xl, pants are one size up. Wear these with the D1 jacket and pants. High quality garments. Yesterday it was 62 with winds of about ten mph... The lowest temp I saw was 59, though the wind gusted up to twenty five mph. I wasn’t cold, but I would have been if the temps were any lower. Probably good to 55, but not much lower...