Material:

Upper: Waterproof leather (at least 80 minutes in water) (WRU)
Lining: Microfiber
Outsole: oil and gasoline resistant, slip-resistant nitrile rubber outsole (SRC)
Insole: Removable 30°C Cork Footbed
Removable insole

Safety:

Steel toe cap (200 joules, 2 mm thick)
Puncture resistance in the shoe (non-metallic)
Antistatic protection
Meets safety requirements S3
(A+FO+E+P+WRU+SR)
(EN ISO 20345:2011)

What we like about this shoe:

Wide toe box that gives toes plenty of space to spread out
Comfortable safety shoe that meets all safety criteria.
Note that this shoe is not a barefoot shoe. A safety shoe feels both heavy and clunky compared to a barefoot shoe, to meet safety requirements. But a very good choice for those who need safety shoes at work!
The shoe is zero drop (without insole)

Fit and size advice:

Width: Suitable for a narrow to wide foot
Height: Suitable for a low to normal/high foot - the lacing allows for very good adjustment of the fit
Size: Runs large. Check the size chart below.

Size chart
Measure your feet (with the heel against a wall, up to the longest toe). Add 0.5-1.5 cm for extra room inside the shoes and follow the size indications in the size chart. The size chart shows the inner dimensions of the shoe.
Example: Your foot measurement is 26.6 cm. Then choose size 42 (27.7 cm) so you will have 1.1 cm of extra room.
These measurements are verified by Widetoes:

35: 23.0 cm
36: 23.5 cm
37: 24.2 cm
38: 24.8 cm
39: 25.6 cm
40: 26.5 cm
41: 27.0 cm
42: 27.7 cm
43: 28.4 cm
44: 29.2 cm
45: 30.0 cm
46: 30.3 cm
47: 31.2 cm