Matthew Poole and continuators on Acts 12:8

8 And the angel said unto him, Gird thy self, and bind on thy sandals: And so he did. And he saith unto him, Cast thy garment about thee, and follow me,

The custom being to wear long garments, they were not so fit to go about any business, until they had girt their garments to them; hence Ieremy is commanded to get a girdle, Ier. 13.1. about him, when he was to be sent on Gods errand.

The sandals were little other than sole-leathers, bound or fastned with thongs.

The uppermost vest (answerable to a cloak amongst us.) God furnishes his people thus with necessaries, and he will have them use them, so far as they are able to serve them, even then when he is working of miracles for their deliverances.