This might be a redundant question- but...
This might be a redundant question- but I'm very new at this. I saw in an earlier post that 130mm skins would fit a pair of 183's for this ski. If I have 153's do I need that same size skins?
The size given for skins typically refers to the width of the skins. A 130mm skin will allow you to get full coverage of the ski surface. If you want a little less weight/resistance you could go with a 125 or 115 (brand dependent). Narrower is usually cheaper, too. At minimum, your ski should have full coverage under foot. This means you need at least a 100mm skin for this ski. You have options on how much skin coverage you want on your skis. Buy a wider skin for more coverage, narrower for minimal coverage.
One additional note. Many people like a straight skin (even on wide shaped skis) - less weight, better glide, but less grip. If you choose that route, you want to size the skins @ 4mm narrower than the ski width, so that the edges remain clear of the skins.