We usually refrain from giving any type of advice, however should you be looking for something snazzy to hold your pants up then this would be the one.
SM
Belt Length: 100cm (from base of buckle to the end)
Suits waists 60-84cm
Width: 3.5cm
ML
Belt Length: 115cm (from base of buckle to the end)
Suits waists 75-98cm
Width: 3.5cm