Is Khefak Armor (alien archive 2, 79) legal for play?

[BigNorseWolf]

Starfinder Alien Archive 2

Equipment: All equipment in this book with a listed item level and price is legal for play except arquand horns, calecor skull-globes, dreamstuff, mi-go brain cylinders, mi-go brain hollowskin, shantak whistle, shotalashu link cord, shotalashu saddle, and squox pet. Feat: The Squox Companion feat is not legal for play. Spells: the polymorph spell (page 145) is legal for play with the following exceptions:

The armor doesn't have an item level. Is it

1) supposed to be banhammered
2) Got left off by a technicallity
3) being saved for some non xenodruid approved Khefak skinnin fun?

[Ascalaphus]

Seems like #2.

That said, I don't think it would be particularly useful. Writers have been hesitant to use radiation in scenarios, and when they do it's often some kind of magical radiation that goes through normal defenses and/or does something different like give you working wings mutations.

[Justin Fritz 56]

It's not an individual armor like the freebooter set or the d-suit, it is a special material. You can pay an additional cost to the armor you normally buy to have them made from that item to get the benefit of that material. Khefak says:

The exoskeleton of mature khefaks with a diet of high-quality composites can be used to create corresponding forms of heavy armor. Khefak-based armor diffuses radiation better than normal composites and offers environmental protections providing immunity to medium radiation and a +6 circumstance bonus to the initial saving throw against radiation exposure (not sickness). This bonus is +2 even when the environmental protections aren’t functional. If the armor’s item level is 7 or higher, its environmental protections work against high radiation, and the saving throw bonus is +9, or +4 when the environmental protections aren’t functioning. Armor crafted with khefak exoskeleton components costs 500 credits more than normal.

Thasteron khefak carapaces are even more valuable. Armor of item level 6 or lower that incorporates thasteron khefak carapaces acts as armor of item level 7 or higher composed of normal khefak carapaces. If armor of item level 7 or higher incorporates thasteron khefak carapaces, its environmental protections provide immunity to severe radiation, and the circumstance bonus to saving throws against initial radiation exposure is +12, or +6 when the environmental protections are nonfunctional. Armor crafted of thasteron khefak carapace components costs 2,000 credits more than normal.

So in this case to you pay the cost of your armor plus the cost of which carapace you would like to have it made from.