Original Czech Army M85 Pants green Surplus No Liner. Shipped with USPS Ground Advantage.

The tag 250 / 172 / 100 appears to be a military/NATO-style sizing code rather than a civilian pants size.

For many European military trousers:

172 = intended height of about 172 cm (5'8")

100 = waist/chest measurement of about 100 cm (39–40 inches)

250 is typically a stock, pattern, or item code rather than the wearable size.

odintactical.co.uk +1

Based on the tag, these pants are roughly comparable to:

Men's Large

Waist about 38–40 inches

Regular length (for someone around 5'8")

Item Specifics:

Size: 250/172/100

Approx. US Size: Men's Large

Style: Military Combat Cargo Pants

Color: green