Synonyms for Kit:

adj.

material (adjective)
equipment.

n.

automaton, contraption, selection, big beast, Accouterments, clunker, contrivance, assortment, automation, array, collection, stock, black box. assemblage, equipment, batch, bank, material, agglomeration, arsenal, battery, bevy, assembly, bale. case, shin guard, jock, jersey, shin pad, athletic supporter, box, jockstrap, leotard, container, cup. body armor, bearskin, chevron, blouse, dress uniform, ensign, camouflage, battledress, combat, breastplate. artifact (noun)
outfit.
bag (noun)
haversack, rucksack.
kit (noun)
kit out, outfit, kit up.
lot (noun)
all, Everything, collection.
luggage (noun)
grip, carpetbag, trunk, traveling bag, bag, handbag, luggage, rucksack, portmanteau, brief case, knapsack, suitcase, satchel, valise, duffel bag, haversack, gladstone.
provisions, equipment (noun)
collection, assortment, outfit, bag, selection, stock, material, suitcase, satchel, container.

v.

possession (verb)
kit out, kit up.

Other synonyms:

jockstrap, leotard, shin guard, shin pad, athletic supporter. cup, jock, jersey. box. Other relevant words:
case, collection, kit up, kit out, bale, selection, equipment, material, assortment, container, stock, battery, jockstrap, cup, Accouterments, outfit.