They also use the old British size charts

Would make a great fancy dress piece

Rank of "Ober­feldwebel"

but also for costumes and reworking

Finnish Navy M65 Service Dress Trousers - W35 L30 DTS Camo They also use the oldAt a glance Quality 86% Wool & 14% Polyester Blend Material Button Closure 2 Waist Pockets, 2 Large Cargo Pockets & 2 Rear Pocket Button Fly Pleated Front 1" Belt Loops Boot Straps Solid Navy Blue Black Colour Waist Size: 35" Suggested Size: Medium Slim Label reads 752 Inside Leg: 30" Regular Total Length: 42" Vintage Militaria Issued 1991 Genuine Finnish Armed Forces Finnish Army Surplus Grades Supergrade Excellent condition, likely new old deadstock