What is he using now? If he doesn't have anything now, has he talked about getting stuff? I know my wife usually knows what I want or what I am getting ready to buy just because I mention it a few times in casual conversation.
I like the singlet you posted. Looks comfortable. I wear a bright orange vest with reflective stripes, kind of like (Ok exactly like) the safety vests you see the people on the sides of the road wearing.
Since I always wear a visor, I bought a light that affixes to my visor. I bought it at Wal Mart in the hunting area of all places. They have white and green bulbs, so make sure you get the one with the white bulbs. I love it and it's cheap, around $9. I also use a little red flashing light. It is an amphipod brand but they don't sell it on their site - go figure. I bought it online from another running store. I have the one with an arm band.
And last but not least I carry a small flashlight. Since we don't have street lights, I need all the help I can get. I only use it when cars are coming. I like the idea of the mag light with a pouch. Hmmmm
So, there are 4 ideas for things you can get. Hope this helps.
enjoy,
Duane