I've been wearing the 4023 Core Low Rise Trunk M exclusively for 20+ years, and was crushed when they were discontinued. So i was thrilled to discover that what looked like the exact same trunks were available again, albeit with a style number 100023, which i assumed to be a continuation of the 4023; they certainly look the same in the photos. I also have at least a dozen pairs to compare them to. Alas. The fit is not quite the same; they're a bit larger all around, and saggy and looser where they used to be perfectly snug. So, not as comfortable. Don't know where the difference lies: perhaps a slightly different fabric, or an adjusted cut? They're close, but not the same. So disappointed.

I normally wear the low rise briefs in L. Butt, my boyfriend is after me to try new things and I thought this would be a good change that isn't too big of a change. As always C-in2 feel great and the fit in all the right places and keep thing where the need to be. I honestly can't keep them on long because now the BF is always trying to take them off!