It is a quite warm vest and probably not suitable for spring use (from 18C and above, you will start sweating with just a t-shirt...). The fabric thickness is about 2 fingers.
The appearance and quality are definitely for everyday use, it is very convenient for outdoor work where you need your hands free for flexibility.
Regarding the size, it is somewhat wide, so do not be tempted to go for larger sizes (thinking that you will have other layers of clothing underneath)

In the photo, it has red cords on the zippers while normally it doesn't. Size medium for a height of 176 cm and weight of 72 kg. Also, without wearing it, I noticed that the elastic on the hood was not sewn on one end. However, overall it is still good even for slightly cold weather

1.85cm 90kg (size L) The best thing about this sleeveless jacket is that, apart from its beauty, its construction is perfect and well-made! It has pockets with fabric inside for warmth, and the "sleeves" have invisible elastic that doesn't let air in (those who ride motorcycles will understand). With 2 internal and 2 external pockets, you don't need anything else for storage! It has a removable hood and very good quality!!! The best sleeveless jacket, especially for someone who rides a motorcycle and doesn't want air or cold to get in! I highly recommend it