Leather jackets are sized to be worn over a light layer. If you are between two sizes, choose the larger one for a jacket and the smaller one for a belt.
Jackets
Measure your chest at the fullest point and compare it with the size chart on the product. Shoulder width and sleeve length are listed on each jacket because those two measurements decide the fit.
Belts
Measure an existing belt from the end by the buckle to the hole you use most. Add two inches if you want room to tighten it later. Leather stretches slightly with wear.
Wallets and purses
Length, height, and depth are on the product page. Card slots are counted separately from the cash compartment.
Still unsure? Send your measurements on WhatsApp and the product name.