I usually wear a 'medium' size glove, and the 'L/XL' size is a good fit in this case (not sure why Small / Medium / Large/ X-Large are distinct options, but I'm pretty sure S/M and L/XL are the actual choices).
I've used these gloves in sub-40F weather, and the neoprene cuts the wind chill well but it doesn't quite retain enough heat to do the trick on its own there. I'd say these are effective from the mid-30s with a liner glove (upper 30s otherwise) into the 50s. Any colder and I'd say pogies/Bar Mitts make more sense.
The gloves offer good grip and cushioning; I haven't tested them in the wet aside from running them under the faucet, but in that case the neoprene did its job and no water leaked through in the ~1min I tested it.
I bought these because my hands will sting beginning in the mid-30s, say, in a rain/snow mix. Because I commute, I may go to work with it dry and in the upper 30s and come home with it pouring and the temp around freezing.
The mfr's specified temp range is accurate. Basically, they don't work well below 40's and in dry weather I'd use something else. I've ridden in rain, some heavy, a few times and they do keep my hands dry. Even though they're not warm enough near freezing, they have stopped the stinging. So, it seems like a win.
Only other comment is to buy one size larger than you'd normally wear. Others have commented on the touchscreen issue.
Got these for an Europe Alps cycling trip. Haven't had to use them yet but they look and feel like the right equipment for a cold rainy day. Stout neoprene but I have full finger dexterity when wearing them.
I purchased these gloves and have used them on 30-40 degree temperature rides in central Kentucky. They were warm but unfortunately my hands get very sweaty in them. As such I have switched to a more breathable pair of gloves. Durability has been excellent thus far.
It is a warm glove without the bulk. The Diluvio C glove keeps the hands warm in the 40's. Several people in my club have purchased the glove and really like them. Price is good and the glove is great.
I bought these for Mt .Biking on coldwet rides, the fit is good however the seam that runs down the thumb is in a bad spot rubbing on the inside of thumb. They may be more comfortable for road riding given the different hand position.
I gave these gloves to my husband for Christmas this year and he was so excited to get them. He rides his bike all year and in Pa, that means all kinds of weather. Hes used them and said that they are perfect!
Like the feel once they are on, dont think they will be good when very cold but works great which they were designed for