how to find costume?

[toqchista]

hi;

in trainer mod i find this costume(look picture) and i want find this mod(drawable) to my MOD Folder;
please anyone learn me simple method, how to find from mod folder, menu mods?
i want for replace new mod;
there are showed that , it name is drawable #1 but this name isn't in player_zero folder or MOD Folder;
or more better to be learn me how to add mod and not replace any mod ;