SpAcEmAn SpLiFF

inside the inner cuff (where your wrist is) of my jacket is a little loop of rope/wire/string about the size of my pinky. what does it do?

Gustov

it's probably for clipping your gloves on while they're not on your hands. not all gloves have clips like that tho of course.

Mr. Right

You could attach your roach clip to it

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When the fuck did we get ice cream?

NickNorth11

Is there possibly a liner that goes with your jacket? My jacket has little loops like that for attaching my inner liner.

AAA

Yes, they're loops for a liner. Often, fleece jackets have snap loops on the cuffs that you can attach around the loops in the shells, so that when you take your jacket off, the fleece liner doesn't turn inside out. They seem almost standard, so you can mix and match with different brands.