BIB shorts at Proownedcycling.com. You can shop by price, size and category filter.
Bib shorts are cycling shorts that are held up by a bib (integral suspenders/braces) instead of an elastic waistband. The bib part of the shorts helps to keep the shorts well placed and prevents them from sliding down.
The bib part of the shorts is often made of spandex and polyester, with large sections of netting to help keep the rider cool, while the lower backside prevents the rider from getting cold or getting a sunburn.