It fits fine like this.
'Così' — co-ZI. The accent on the final 'i' — it is stressed.
Say this when the size is right and you are happy with the fit. This signals to the staff member that the sizing conversation is complete and you are ready to buy or consider the item further.
'Va bene' = it is fine / it goes well. 'Così' = like this / as is. Together: 'it's fine as it is'. This is a very common Italian affirmative in shopping contexts. Can also be used for other decisions: 'va bene così' to confirm a wrapping, a price, or a service.
Mi sta bene.
It fits me well / it suits me.
'Stare bene' for clothing — to suit or fit.
È la taglia giusta.
It is the right size.
Confirms the size is correct.
Lo prendo.
I'll take it.
The natural conclusion — decision to buy.
When an Italian item fits perfectly, it is known as 'vestire a pennello' — fitting like a paintbrush stroke, perfectly precise. This vivid expression captures the Italian obsession with precise, beautiful fit in clothing.