as this is my first kilt belt i've ordered, i may have mis-calculated ...

i ordered a medium 33-39" leather belt from the kilt store [btw, very congenial and fast service ].

the belt is about 2.25" wide and has narrow strip that apparently buckles to a clasp on the inside and about the middle of the wide portion. my kilts are 38" waist. and fit well. so i thought the 39 would handle but apparently not .

anyway. how are these belts supposed to work.

sorry for such a novice question...

regards,

ambrose