I have had a number of bib tights over the years: Pearl Izumi, Giordana, and Assos. These Sportful Bib Tights are the best by far for 4 reasons:
1. The TC Pro chamois is contour padded just where it needs to be, not so large that it bunches up causing chafing, and the design (pattern) allows the pad to be in the same position as with bib tights. Thus the comfort transition from bib shorts to bib tights is seamless. This must be an art because few other bib tights have this feature.
2. The tight is made up of multiple fabrics so quads are compressed but not overheated, knees are double fabric so they stay warm in a cold wind but the fabric slides over the knee, not chafing it, and the balance of the tights have just the right fabric in the right place. I have found other tights with one layer of polyester over the knee, suede on one side, which seemed warm when I tired them on but the wind cut through them easily once on the bike. Others do not compress the quads, etc.
3. The zipper is on the outside of the each leg bottom so there is no chafing the heal as with others with the zipper on the rear.
4. They have style.
These are great bib tights at any price but, at the retail price, are a screaming bargain.