From Team Fortress Wiki

The draft!

Category "Multi-Class" is the term that means "Can be used/worn by multiple classes". The difference with "All classes" is in the amount of classes (All = 9; Multiple = 2-8; One = 1, certain class). Usually the multi-class items are marked in the update table at the bottom of the page (eg., watch here, the icons near the Mutton Mann). The combinatorics (especially, the combination) gives next numbers for how much Multi-Class variations there are:

a) 2-class: C(n,m)=C(2,9)=9!/(7!*2!)=36 b) 3-class: C(3,9)=84 c) 4-class: C(4,9)=126 d) 5-class: C(5,9)=126 e) 6-class: C(6,9)=84 f) 7-class: C(7,9)=36 g) 8-class: C(8,9)=9 Totally: 501 mutli-class variations (note: there are 9 one-class variations and 1 all-class variation). (Already used variations: 5 for weapons, 4 for hats, 12 for misc.items; but 20 for all items, excluding all repeats.)







List of the Multi-class weapons:



List of the Multi-class cosmetics (for the list of the All Class cosmetics look here):

a) Hats

b) Miscellaneous items