The first and most important thing is not to make the mistake of getting a smaller size. It's better for them to be slightly bigger and adjust the size with double socks or orthopedic insoles. They don't cause any problems on the calf (e.g. friction). However, the sole feels like walking on concrete, but it is durable and slip-resistant. Perfect for short-term outdoor work. They can be very tiring if you walk a lot.

Comfortable rain boots, made with a sturdy sole.
What many say in other comments about the size is true.
They have a wide fit, so one or even two sizes smaller than what you usually wear would be the choice if someone wants a good fit. Personally, I wear 43-44 and I got size 44.
While they are wide, they are also quite comfortable for my taste, as I generally prefer to have space in my shoes.
I highly recommend them without hesitation.

They are great in terms of size as well as the foot entry when you wear them. They are very decent and definitely worth their money and more.

Excellent quality is beyond doubt, BUT - as another user mentioned, they run larger than the normal size in the foot. Also (in complete contrast to another user's comment), you must have very slim calves to wear them, which personally disappointed me. You must have skinny legs to consider them wide boots! I, who have more muscular calves, for size 39, my calves were just right, but the foot was for size 38, for example. It would have been even more difficult to wear them if I didn't wear compression socks up to the knee, they wouldn't go up at all -_- . Other than that, no matter how much water falls, you don't feel anything, they don't slip and all related things. Keep in mind that they may feel heavy to some people.

They do not slip, comfortable to walk in. Take your size into account. You may need insoles because they are slightly larger. Good quality construction

It is the 2nd pair of Dunlop that I buy after many years of use in the field!
They are very comfortable and you don't need to get a larger size, get the one you normally wear.
I recommend them blindly. Guaranteed!

Comfortable, sturdy, with the upper part of the leg quite flexible. The size is slightly larger than the regular shoe size.

Durable material, comfortable and relatively fatigue-free for walking. However, they are very wide for their size. They should be worn with insoles or very thick socks, otherwise, get a size smaller than your regular size

I bought the boots for walking in difficult weather conditions (rain, snow, mud) and not for working in fields. Therefore, their durability will be tested over time. They do not slip on water and frozen snow. They require a little caution on ice, but anyway, you can only be sure with crampons. They are soft and comfortable to walk in.
I got size 45, while I wear size 45-46 in sports shoes. They have enough room for thick hiking socks or silicone insoles. Because PVC is a cold material, if you only want them for winter, it might be better to look for lined boots. I would like them to be a little tighter around the calf. Overall, at €16 (€12 + €4 for shipping) and occasional use, I think they are worth it and more.

EXCELLENT QUALITY, 100% WATERPROOF & 100% ANTI-SLIP.
I USE THEM IN MUD & WATER (due to daily dog walks in the mountains) and they are fantastic.
THEY WERE ALSO TESTED AND PERFORMED PERFECTLY IN SNOW & ICE (during the "ELPIDA" storm).
NOTE: In the snow, thick socks are needed (because the foot gets a little cold) or the model with the inner lining.

The rain boots are very good. I did some work around the house with the pipes outside and they helped me throughout the whole duration. For size, I usually wear 44-45 in athletic or casual shoes, I bought them in size 45 and they fit well. I believe size 44 would have been uncomfortable.

A little heavy at first impression, but in the field I didn't even feel their weight. Completely waterproof, maybe they would need a size down but I don't know if they would fit me well or if they would be too tight. They are a little loose on my foot without affecting my work, I believe they will fit better with an insole.

I use them in mines and caves. They don't slip even in muddy conditions on downhill points. Their sole is ideal for walking on rocks.

I have had them for 3 months, not frequent use, they are great boots and they also seem durable, time will tell.