A youth small size typically corresponds to children aged around 6 to 8 years old. The measurements for youth small are approximately:

• Height: 46 to 50 inches (117 to 127 cm)
• Chest: 24 to 26 inches (61 to 66 cm)
• Waist: 19 to 21 inches (48 to 53 cm)
• Hip: 25 to 27 inches (63 to 69 cm)
• Inseam to ankle bone: 17.5 to 19.5 inches (44 to 50 cm)
• Sleeve length (center back neck to wrist): 21 to 22.5 inches (53 to 57 cm)

These dimensions fit children roughly in the 6-8 year age range

. Other sources confirm youth small generally fits ages 6-7 with chest measurements around 25-27 inches