It's a suit designed to siphon off excess radiation. His regular one doesn't look as lame.
NUKE (Albert Gaines)
Created By: J.M. DeMatteis & Don Perlin
First Appearance: The Defenders #112 (Oct. 1982)
Role: The Brash Youngster/Punk Kid, The Blaster, The Loose Cannon, First Blood
Alternate Company Equivalent Of: Firestorm (super-powerful Radiation-using punk kid)
Fate: Went nuts, suffocated to death inside Dr. Spectrum's Energy Bubble by burning up all the oxygen inside it.
Group Affiliations: The Squadron Supreme
PL 10 (132)
STRENGTH 3 STAMINA 4 AGILITY 3
FIGHTING 6 DEXTERITY 0
INTELLIGENCE 0 AWARENESS -1 PRESENCE 0
Aerobatics 2 (+5)
Athletics 2 (+5)
Close Combat (Unarmed) 3 (+8)
Expertise (Pop Culture) 3 (+3)
Intimidation 10 (+10)
Ranged Combat (Radiation) 4 (+9)
All-Out Attack, Daze (Intimidation), Evasion, Improved Critical (Blast), Improved Initiative, Improved Smash, Power Attack, Ranged Attack 5, Startle
Immunity 6 (Radiation Damage & Environment) 
Flight 8 (120 mph) 
"Radiation Blast" Blast 11 (Feats: Dynamic, Split, Penetrating 8) (32) -- 
- Dynamic AE: Damage 10 (Extras: Area- 30ft. Burst, Penetrating) (31)
Dynamic AE: Dynamic AE: Damage 10 (Extras: Area- 30ft. Line, Penetrating) (31)
Dynamic AE: Dazzle Visuals 10 (Extras: Area- 30ft. Burst) (Flaws: Touch Range) (21)
Dynamic AE: Radioactive Aura 8 (33)
Unarmed +8 (+3 Damage, DC 18)
Blast +9 (+11 Ranged Damage, DC 26)
Area Attacks +10 Area (+10 Damage, DC 25)
Dodge +10 (DC 20), Parry +8 (DC 18), Toughness +4, Fortitude +7, Will +2
Reputation (Loose Cannon)- Nuke is young and impetuous- the first Supremor to run headfirst into a fight, and the first one to screw up and over-do it.
Relationship (Parents & Brother)- Nuke is a devoted son to his beloved parents. This doesn't end well.
Guilt (Parents' Cancer)- It turns out the constant low levels of radiation Albert gives off have given both of his parents terminal cancer. This knowledge will eventually drive Albert totally mad, making him give teammate Tom Thumb an impossible ultimatum, and finally sending him on a rampage.
Vulnerable (Mind Control)- The Squadron Supreme have proven themselves very easy to take over mentally for some reason as it has happened several times. This may be random chance, or an actual weakness.
Responsibility (The Utopia Program)- The Squadron has founded a program designed to cure all the world's ills- Crime, Poverty, Disease, War... even Death itself. Some members are more dedicated than others, but they all strive to help.
Total: Abilities: 30 / Skills: 24--12 / Advantages: 13 / Powers: 62 / Defenses: 15 (132)
-Nuke gets statted out first of all the Squadron characters because he was also the shortest lived (spoiler warnings abound for all these builds, not that you'd need them, since you ALL SHOULD HAVE READ THIS SERIES BY NOW). Early issues featured him going slowly crazy over his parents' death due to cancer (that he himself apparently gave them), and when Squadron member Tom Thumb failed to save their lives, he went full-on bat-guano nuts. He went on a destructive spree, only stopped by teammate Dr. Spectrum, who unfortunately killed him by trapping him in a bubble of energy (Nuke had wiped out all the oxygen inside it). He was the first casualty of MANY of the main cast. So early was his death, though, that he ended up being almost completely overshadowed, but it was definitely a sign of things to come- the symbol of dark days ahead.
-Nuke just wasn't that good a super-hero, so he doesn't spend a whole tons of points for his PL, even now. I'm even kind of guessing on an Immunity to Radiation here, not to mention the Aura & Dazzle Alt-Effects. He was basically a hot-headed, angry young man with hyper-radiation powers, happy to just blast away in combat. His offensive powers are pretty lethal though, both Area & regular effects are Penetrating. For his disease-causing properties, I included it as a Complication, since you can't really stat up "Must Spend 5 Hours a Day With Him For Years" as a Flaw realistically, in adding to mucking up the works with Uncontrolled as well. He's basically a high-powered Blaster, leaning towards damage over accuracy, and with very few Skills or Mental Abilities to back himself up.