The main omission which strikes me is a whistle. Otherwise it seems basically fine.

The phone and lighter are a lot of bulk which don't seem to give you a lot of value. I carry an all-singing, all-dancing smart phone, but I know not everyone shares my love of gadgets.

I'd consider adding a bandanna or large handkerchief if you can find a suitable pocket for it. Back pockets are ideal; a good silk one will fold flat enough not to be noticed there, and it has a lot of uses in first aid or for cordage.