How to measure your inside leg

Most men know their waist and guess their leg. The guess is usually an inch too long (sample guide).

Stand straight in socks with your back against a wall. Hold a hardback book flat between your legs, spine up, pressed gently into the crotch, and ask someone to measure from the top of the book to the floor.

Round down to the nearest even inch: that is your L. If you wear your trousers with a full break on the shoe, add half an inch; if you like them cropped, take one off. We hem free, so when in doubt, buy long.