Width of belt is 1.5" or 38 mm, perfect width for jean 100% Genuine cow leather Strap has snaps in case you like to switch to other buckle option Size 30: Length from Start of strap to middle hole 30" then add 6.5" more to tip end Size 32: Length from Start of strap to middle hole 32", then add 6.5" more to tip end Size 34: Length from Start of strap to middle hole 34", then add 6.5" more to tip end Size 36: Length from Start of strap to middle hole 36", then add 6.5" more to tip end Size 38: Length from Start of strap to middle hole 38", then add 6.5" more to tip end For example, size 32, the total strap length is 38.5" Please measure your current belt length to see and find your best size