No two pairs of jeans are made the same. Well, across different brands, anyway. So, when shopping (on MR PORTER, of course), check the sizing guide for the specific pair you’re after and cross reference it with your waist measurement. This will ensure you buy perfectly snug jeans every time. Perfectly snug does not mean tight, mind – you should be able to slip a thumb behind the waistband.

Remember: denim is essentially cotton so it will stretch, and shrink slightly when you add heat and water in the mix (a practice otherwise known as “washing”). You should avoid washing raw denim jeans as the material is more sensitive and, the more you wear them, the more they will mould to your body. Here is Jean Shop owner Mr Eric Goldstein on how to treat denim. “If it’s raw, meaning unwashed, it’s going to fit completely differently to a jean that has a heavy stonewash on it, or is bleached out – because all that processing is done in hot water and hot air to dry it, so it shrinks. No one should assume that if you’re a size in one wash then you’ll be the same size in a different one. You want the jeans to be comfortably snug when you put them on. For raw denim, you want them to be almost uncomfortable, as they will stretch. A raw pair should be bought pretty much true to size, but anything with a wash on might have to be bought a size up because of the shrinkage.”