Surf’s Up, bub Can’t breathe underwater? No problem. As seen in Wolverine #45, the Hydro Armor’s second incarnation was more than ready for battle far below the surface world.

All red, big and bulky, the Crimson Hydro Armor, Model XIII, Mark II, is very similar to the original Hydro Armor. It features a retractable glass dome over a more standard Iron Man helmet (complete with retractable face plate) and an oversize frame—this heavy-duty construction is key to its ability to withstand the incredible pressure of the vast depths of the ocean. Beyond the durable shell, all the joints are super-reinforced. This model can go more than 100 miles deep (all the way to Atlantis).

Although the underwater propulsion systems have been improved in the years since the Mark I suit, the very nature of water makes maneuvering in it problematic. The armor handles like an 18-wheeler running with just nine wheels, so it’s not suited for close combat.

The suit has a special ocular/optical gizmo made especially for the low light of the undersea environment. Special eyepieces (which look like black rings) allow IM to see with little mechanical/additional light. Although the suit does feature several glowing ports that provide ambient light, including a triangular chestbeam.

The on-board computer is equipped with auto-pilot (complete with voice).

Special "No prize" feature on this suit: The armor has some kind of advanced self-sealing, self-repairing ability. After Wolverine did his Snikt! thing, his adamantium claws shredded through the armor’s gauntlets. Rather than decompressing under the massive pressure of the great depth, the suit maintained its structural integrity.

Known armaments: palm repulsors and a chest-mounted unibeam.

Trivia note: This armor is among the few ever worn by someone who was not a close associate of Tony Stark (Wolverine), Avengers membership notwithstanding. Logan needed it to track a villain to the deep depths of Atlantis. And Stark, a little busy with his Civil War, was all to happy to let him dispense some justice to one of the terrorists involved in the Stamford debacle.

Note for Iron Man purists: Although this armor’s only appearance took place outside the pages of Iron Man, it’s just too cool to leave out of any complete compendium of Shellhead’s gear. (Besides, IM tech specs are few and far between in the current era.)

Note for Iron Man completists: See above note.

Check out the original Hydro Armor.