Try a gold or silver metallic Sharpie and put small marks where you could ID them.

Great idea, Todd.

Thanks!

P.S. -- For what it's worth, I'm still surprised and a bit peeved that these headcovers don't have the small plastic holders for numbers or degrees like the ones on regular Titleist headcovers. (After reviewing other leather headcovers in Titleist's catalog, I see that all of them lack the same simple but essential feature.) I spent almost $600 (ouch!) for products that, while attractive, are basically dysfunctional due to the lack of $2 worth of holders.

Do you know if the hybrid head cover will fit the tsi2 7 wood?

You’ll learn to live with it and I love the classic, understated look. If it does continue to bother you, take a Sharpie (as noted) and make a discrete mark on one of the fairway covers. As an alternative, you may be able to find someone who can embroider a number near the bottom of the cover (although it may be hard to find someone who has equipment that can embroider leather). If you can find a place that works in canvas, they may be able to help.

Do you know if the hybrid cover is big enough to fit the 7 wood tsi2?

Most likely need to get the fairway headcover for the the 7 wood (fairway)......

I have these too, and I put a dot with a silver sharpie on one to know the difference between the fairway/hybrid ones.

Same problem here as I carry 2 hybrids.
So I put a discreet mark on one of them which most people will not notice.
Titleist - I coloured the dot of the i red.

Funny, can’t seem to post picture in my reply.