Item sets
Wear enough pieces of a set and it adds bonuses on top of the items' own, tier by tier. A piece counts in any of the versions listed (trimmed armour counts for its metal). Hover the worn equipment tab in game to see what you have on.
Bronze armour
Pieces: 
Bronze med helm · 
Bronze platebody · 
Bronze platelegs · 
Bronze sq shield
- 2 pieces: +5 max hitpoints
- 4 pieces: +10 max hitpoints
Iron armour
Pieces: 
Iron med helm · 
Iron platebody · 
Iron platelegs · 
Iron sq shield
- 2 pieces: +8 max hitpoints
- 4 pieces: +15 max hitpoints, +2% dodge
Steel armour
Pieces: 
Steel full helm · 
Steel platebody · 
Steel platelegs · 
Steel kiteshield
- 2 pieces: +10 max hitpoints
- 4 pieces: +20 max hitpoints, +3% dodge
Mithril armour
Pieces: 
Mithril full helm · 
Mithril platebody · 
Mithril platelegs · 
Mithril sq shield
- 2 pieces: +0.2 move speed
- 4 pieces: +25 max hitpoints, +0.3 move speed
Adamant armour
Pieces: 
Adamant full helm or 
Adamant full helm (t) or 
Adamant full helm (g) · 
Adamant platebody or 
Adamant platebody (t) or 
Adamant platebody (g) · 
Adamant platelegs or 
Adamant platelegs (t) or 
Adamant platelegs (g) · 
Adamant kiteshield or 
Adamant kiteshield (t) or 
Adamant kiteshield (g)
- 2 pieces: +15 max hitpoints
- 4 pieces: +30 max hitpoints, +5% dodge
Rune armour
Pieces: 
Rune full helm or 
Rune full helm (t) or 
Rune full helm (g) · 
Rune platebody or 
Rune platebody (t) or 
Rune platebody (g) · 
Rune platelegs or 
Rune platelegs (t) or 
Rune platelegs (g) · 
Rune kiteshield or 
Rune kiteshield (t) or 
Rune kiteshield (g)
- 2 pieces: +20 max hitpoints
- 4 pieces: +40 max hitpoints, +5% critical hits
Black armour (t)
Pieces: 
Black full helm (t) · 
Black platebody (t) · 
Black platelegs (t) · 
Black kiteshield (t)
- 2 pieces: +5% luck
- 4 pieces: +10% luck, +15 max hitpoints
Black armour (g)
Pieces: 
Black full helm (g) · 
Black platebody (g) · 
Black platelegs (g) · 
Black kiteshield (g)
- 2 pieces: +8% luck
- 4 pieces: +15% luck, +15 max hitpoints
Adamant armour (t)
Pieces: Adamant full helm (t) · Adamant platebody (t) · Adamant platelegs (t) · Adamant kiteshield (t)
- 4 pieces: +10% luck
Adamant armour (g)
Pieces: Adamant full helm (g) · Adamant platebody (g) · Adamant platelegs (g) · Adamant kiteshield (g)
- 4 pieces: +15% luck
Rune armour (t)
Pieces: Rune full helm (t) · Rune platebody (t) · Rune platelegs (t) · Rune kiteshield (t)
- 4 pieces: +12% luck
Rune armour (g)
Pieces: Rune full helm (g) · Rune platebody (g) · Rune platelegs (g) · Rune kiteshield (g)
- 4 pieces: +20% luck
Saradomin's armour
Pieces: 
Saradomin full helm · 
Saradomin platebody
- 2 pieces: +0.5 prayer a kill, +0.5 hitpoints a second
Zamorak's armour
Pieces: 
Zamorak full helm · 
Zamorak platebody
- 2 pieces: +8% critical hits, +1 damage
Guthix's armour
Pieces: 
Guthix full helm · 
Guthix platebody
- 2 pieces: +3% lifesteal, +10% Woodcutting speed
Wizard's robes
Pieces: 
Wizard hat or 
Blue wizard hat · 
Wizard robe or 
Blue wizard robe or 
Black robe · 
Blue skirt · 
Wizard boots
- 3 pieces: +1 projectile
- 4 pieces: +1 pierce
Leather armour
Pieces: 
Coif · 
Leather body · 
Leather chaps · 
Leather vambraces or 
Leather gloves · 
Leather boots
- 3 pieces: +5% attack speed
- 5 pieces: +1.5 range, +3 projectile speed
Green dragonhide
Pieces: 
Green d'hide body · 
Green d'hide chaps · 
Green d'hide vambraces
- 2 pieces: +3% dodge
- 3 pieces: +1 projectile
Robin Hood's garb
Pieces: 
Robin Hood hat · 
Ranger boots
- 2 pieces: +6% critical hits, +0.2 move speed
Evil chicken costume
Pieces: 
Chicken head · 
Chicken wings · 
Chicken legs · 
Chicken feet
- 2 pieces: +0.3 move speed
- 4 pieces: +0.5 move speed, +10% dodge
H.A.M. robes
Pieces: 
Ham hood · 
Ham shirt · 
Ham robe · 
Ham gloves · 
Ham boots
- 3 pieces: +5% dodge
- 5 pieces: +10% luck, +1 pickup radius
Pirate's outfit
Pieces: 
Pirate bandana or 
Pirate's hat · 
Stripy pirate shirt · 
Pirate leggings · 
Pirate boots
- 2 pieces: +5% luck
- 4 pieces: +15% luck, +15% Fishing speed
Skeleton costume
Pieces: 
Skeleton mask · 
Skeleton shirt · 
Skeleton leggings · 
Skeleton gloves · 
Skeleton boots
- 3 pieces: +2% lifesteal
- 5 pieces: +3% lifesteal, +0.3 prayer a kill
Zombie costume
Pieces: 
Zombie mask · 
Zombie shirt · 
Zombie trousers · 
Zombie gloves · 
Zombie boots
- 3 pieces: +0.5 hitpoints a second
- 5 pieces: +30 max hitpoints, +1 hitpoints a second
Highwayman's disguise
Pieces: 
Highwayman mask · 
Black cape
- 2 pieces: +8% luck, +0.2 move speed