ALTURA Airstream bib shorts, £39.99,

The most striking feature of these bibs is how thin and light they are, while still offering a comfortable, snug fit with good padding. In fact, if it wasn’t for this padding, you might have to check every now and then that you're actually wearing something. This unobtrusive quality is handy if you need to wear trousers on top; something you might consider for the pub lunch despite their subtle styling. 

Silicone hem grippers do a good job, but those with thicker thighs might want to go for a bigger size. Discrete reflective elements are well placed too. GW

PROS price, fit, feel, reflectivity
CONS no pocket