What's the optimum Lycra count in vests

[JackandDiane]

So they cling but don't ride up? Primark. No.

Gap trouser -5%. Perfect.

I wear gap ribbed vests not sure what the lycra content is, but they stay down.
The primark ones are crap sadly.

I don't want ribbed

Also. While you're all there. T shirts that have a high ish neck to show under deep vs but open enough not to strangulate