For some reason the Swedish army had their rubber boots made by Nokia in Finland. These are top quality, military-grade boots, and unissued. As a bonus, these come with warm liners.
Sizes are in the Mondopoint system, which is the length of the foot in millimeters. The approximate French size in brackets. The last is quite wide and the sizing is pretty generous. These are always meant to be used with two pairs of socks. Additionally, the liner boots can be worn when the weather gets very cold. This has already been taken into account with the sizing. DO NOT order "one size up, just in case" - take your normal size.
Unissued Swedish military surplus. These are not vintage footwear, but modern boots: made in the 90s. So never used, but some storage scuffs might be found.