[Lordzy]

pawn Код:

public OnAccountLoad(playerid)
{
    //Your stuffs
    g_PlayerLoggedIn[playerid] = true; //You may already have something similar to this.
    return 1;
}

public OnPlayerRequestSpawn(playerid) //The callback called before player getting spawned
{
    if(g_PlayerLoggedIn[playerid])
        SetSpawnInfo(playerid, g_SavedTeam[playerid], g_SavedSkin[playerid], ...); //Set the spawn info, make sure you store the class information to use them in this function.
    return 1;
}

So when the player spawns, they'll be using the saved skin.