Mario:

Shirt:

Defense: 6
Magic Defense: 6
Price: 7 coins
Location: Mushroom Kingdom

Thick Shirt:

Defense: 12
Magic Defense: 8
Price: 14 coins
Location: Rose Town

Mega Shirt:

Defense: 18
Magic Defense: 10
Price: 22 coins
Location: Moleville

Happy Shirt:

Defense: 24
Magic Defense: 12
Price: 38 coins
Location: Marrymore

Sailor Shirt:

Defense: 30
Magic Defense: 15
Price: 50 coins
Location: Sea/Seaside Town

Fuzzy Shirt:

Defense: 36
Magic Defense: 18
Price: 70 coins
Location: Nimbus Land

Fire Shirt:

Defense: 42
Magic Defense: 21
Price: 90 coins
Location: Barrel Volcano/Bowser's Keep

Hero Shirt:

Defense: 48
Magic Defense: 24
Price: 100 coins
Location: Bowser's Keep

Mallow:

Pants:

Defense: 6
Magic Defense: 6
Price: 7 coins
Location: Mushroom Kingdom

Thick Pants:

Defense: 12
Magic Defense: 8
Price: 14 coins
Location: Rose Town

Mega Pants:

Defense: 18
Magic Defense: 10
Price: 22 coins
Location: Moleville

Happy Pants:

Defense: 24
Magic Defense: 12
Price: 38 coins
Location: Marrymore

Sailor Pants:

Defense: 30
Magic Defense: 15
Price: 50 coins
Location: Sea/Seaside Town

Fuzzy Pants:

Defense: 36
Magic Defense: 18
Price: 70 coins
Location: Nimbus Land

Fire Pants:

Defense: 42
Magic Defense: 21
Price: 90 coins
Location: Barrel Volcano/Bowser's Keep

Prince Pants:

Defense: 48
Magic Defense: 24
Price: 100 coins
Location: Bowser's Keep

Geno:

Mega Cape:

Defense: 6
Magic Defense: 3
Price: 22 coins
Location: Moleville

Happy Cape:

Defense: 12
Magic Defense: 6
Price: 38 coins
Location: Marrymore

Sailor Shirt:

Defense: 18
Magic Defense: 9
Price: 50 coins
Location: Sea/Seaside Town

Fuzzy Cape:

Defense: 24
Magic Defense: 12
Price: 70 coins
Location: Nimbus Land

Fire Cape:

Defense: 30
Magic Defense: 15
Price: 90 coins
Location: Barrel Volcano/Bowser's Keep

Star Cape:

Defense: 36
Magic Defense: 18
Price: 100 coins
Location: Bowser's Keep

Bowser:

Happy Shell:

Defense: 6
Magic Defense: 3
Price: 38 coins
Location: Marrymore

Courage Shell:

Defense: 12
Magic Defense: 6
Price: 60 coins
Location: Monstro Town

Fire Shell:

Defense: 18
Magic Defense: 9
Price: 90 coins
Location: Barrel Volcano/Bowser's Keep

Heal Shell:

Defense: 24
Magic Defense: 12
Price: 100 coins
Location: Bowser's Keep

Bowser:

Happy Shell:

Defense: 6
Magic Defense: 3
Price: 38 coins
Location: Marrymore

Courage Shell:

Defense: 12
Magic Defense: 6
Price: 60 coins
Location: Monstro Town

Fire Shell:

Defense: 18
Magic Defense: 9
Price: 90 coins
Location: Barrel Volcano/Bowser's Keep

Heal Shell:

Defense: 24
Magic Defense: 12
Price: 100 coins
Location: Bowser's Keep

Princess Toadstool:

Polka Dress:

Defense: 24
Magic Defense: 12
Price: 0 coins
Location: Mushroom Kingdom

Nautica Dress:

Defense: 30
Magic Defense: 15
Price: 50 coins
Location: Sea/Seaside Town

Fuzzy Dress:

Defense: 36
Magic Defense: 18
Price: 70 coins
Location: Nimbus Land

Fire Dress:

Defense: 42
Magic Defense: 21
Price: 90 coins
Location: Barrel Volcano/Bowser's Keep

Royal Dress:

Defense: 24
Magic Defense: 24
Price: 100 coins
Location: Bowser's Keep

All:

Work Pants:

Defense: 15
Magic Defense: 5
Price: 22 coins
Location: Moleville
Recommended Character: Bowser

Super Suit:

Defense: 50
Magic Defense: 50
Price: 50 coins
Location: Monstro Town
How to obtain: Perform 100 Super Jumps and visit the thwomp in Monstro Town.
Recommended Character: Mario

Lazy Shell:

Defense: 127
Magic Defense: 127
Price: 70 coins
Location: Rose Town
How to obtain: Take the seed and fertilizer to the old man in Rose Town.
Recommened Character: Toadstool