Deeluxe makes a hardboot for every application, but there is often a lot of overlap and opinion as to what boot one should use.  What works for one person, may not work for another. Take a look at the following breakdown, based on our experience and Deeluxe's specifications. 
Note: if you last rode hardboots years ago without heat moldable liners, things have changed considerably since then.  Deeluxe's Thermoflex liners allow the inside of the boot to conform to the shape of your foot, and have made hardshell boots amazingly comfortable.

Folder: assets/images/Boots/Deeluxe/thumbnails/ | Date/Time: 10/7/2016 10:21:43 PM | Size: 39 kbDeeluxe Track 425 PRO T - The stiffest flexing boot in the Deeluxe line, with a symmetrical Race Flex Pro shell design. Comes stock with a Pro tongue, booster strap and Thermo Flex DEL 141 liner, Deeluxe considers this their symmetrical race boot. More Details.

Folder: assets/images/Boots/Deeluxe/thumbnails/ | Date/Time: 10/8/2016 11:17:16 AM | Size: 34 kbDeeluxe Track 700T - Second in stiffness only to the 425, with an asymmetrical Race Flex shell design.  The 700T flexes 10° off axis, and is a favorite of freecarvers and racers alike. Comes stock with a booster strap and Thermo Flex DCL 131 liners. More Details.

Folder: assets/images/Boots/Deeluxe/thumbnails/ | Date/Time: 10/7/2016 10:25:09 PM | Size: 38 kbDeeluxe Track 325T - All purpose boot with the Carve Flex symmetrical shell design. The tongue is made of the same plastic as the Track 700T, but the upper and lower shell are slightly softer than the 700T. Comes with stock Thermo Flex DCL 131 liners. If you want a softer flexing boot, try the Track 225T. More Details.

Folder: assets/images/Boots/Deeluxe/thumbnails/ | Date/Time: 12/22/2016 10:51:12 PM | Size: 37 kbDeeluxe Track 225T - Softer, all-mountain boot with Ride Flex symmetrical shell design. The same shape as the 325s, but with a softer tongue and lower shell. Comes with stock Thermo Flex DCL 131 liners. More Details

Folder: assets/images/Boots/Head/thumbnails/ | Date/Time: 10/11/2016 8:26:44 PM | Size: 36 kbHead Stratus Pro - Head no longer manufactures their Stratos Pro boot, but that doesn't mean we have to stop carrying it!  We have a number of smaller sizes at an affordable price point.  This boot is comparable to the 325T in stiffness. Has standard symmetrical flex and partially moldable Head liner. More details



Some additional reading:

 How to size my boots?

Where do I find the Mondo size on my boots?