Fanny Pack Size - Strap Length

Size refers to the length of the adjustable straps + size of the bag (36mc) in total circumference.

Inches
S/M 27 ⅝ - 37 ¾
M/L 35 ⅜ - 52 ⅜

Centimeters

S/M 70 - 96 cm
M/L 90 - 133 cm