Pants have elastic waist. Part of a 3-piece set: jacket, pants, and hat.

Yarn requirements for all 3 pieces
Main color: 7 (8,8,9,10) balls
1 ball each of 4 other colors
(Only the main color is used in the pants.)

Finished measurements
Waist: 17 (19, 21, 21, 23) inches / 43 (48.5, 53.5, 53.5, 58.5) cm
Length: 12 1/2 (13 1/2, 14 1/2, 15 1/2, 16 1/2) inches / 29 (31.5, 34.5, 37, 39.5) cm