Dolomite is a member of the Tecnica/Nordica family. They don’t advertise, and thus are able to offer lots of boot for the buck.
The Z Series boots are stripped down race boots that feature lower volume shells, neutral stance and lots of performance. These boots approach plug like performance, with a relaxed fit and great value.
The XC series fits a higher volume foot that the Z boots, but still has plenty of upper end performance. Good skiers with wider feet and larger calves should look here for comfort and performance.
The Ultradrive for men and the Udrive boots for women are higher volume still, and feature a ski/walk mode. These are great boots for recreational skiers with thick wide feet and calves.
The Omega boots are the roomiest, cushiest boots around. They are mid entry boots, where the rear of the boot pulls back to make for super easy entry, even standing in the parking lot. If you miss your old rear entry boots, than check out an Omega, you will feel right at home.