Unisex
The size is unknown, the tag is cut off. Judging by measurements and fitting, it is size L. In any case, see measurements.

Waist 44-47 cm (adjustable with a drawstring)
Inseam 75 cm
Height 36 cm
Width 31 cm
Bottom width 11-17 cm
Total length 105 cm
material:98%Cotton 2%Elastane-Spandex