Fernando Octavio Brendinberger wrote a review of Castelli Nero Classic Bib Knickers on October 20, 2012
I got these as a base layer to wear under my Winter bibs. Due to the type of material used on this knicker it's basically a Summer bib with longer leg sections. I'm 185.5cm/102kg and the XXXL fits me well. Not tight
The biggest selling factor is, however, the sale price. After buying one and deciding to keep it I bought another one! And if they're still available in another month I'll probably buy a third so I can rotate their use as I ride all Winter long.