Class and Level Geekery VIII (spoilers ahoy!)

[Gilphon]

We have seen characters wearing gloves in OOTS. Namely, Thor has been seen wearing gloves, as has, if you want a more human-sized example, the Azurite blacksmith. We also know that Haley isn't wearing gloves of dexterity.

While I'd agree with this in the general case, the description here means we can't take it to be true in the specific case:

Gloves of Arrow Snaring
Once snugly worn, these gloves seem to meld with the hands, becoming almost invisible. Twice per day, the wearer can act as if he had the Snatch Arrows feat, even if he does not meet the prerequisites for it. Both gloves must be worn for the magic to be effective. At least one hand must be free to take advantage of the magic.

Faint abjuration; CL 3rd; Craft Wondrous Item, shield; Price 4,000 gp.

Given that they're almost invisible when worn, it's quite probably they wouldn't be represented in the art.