At a glance: If a vest reveals more than you expected, check the actual garment and the conditions in which you notice it. No single GSM threshold guarantees opacity across every colour, fit and fabric.
Describe what changes
Note whether the issue appears only when the vest is stretched, damp or under a particular light. Compare the product photographs and description, without treating a studio image as evidence of how every condition will look.
Check chest room and armhole coverage
A vest can reveal skin through the fabric or through the neckline and side opening. Those are different issues. Compare chest width, length and armhole cut with a vest you like; sizing down may create more stretch rather than more coverage.
Ask for product-specific information
Ask for a close-up or a relevant view if opacity is important to your purchase. A fabric-weight number alone cannot answer it. The Chaze Fit vest is listed as cotton, but this guide does not supply a wet-opacity test for it.
Use the vest coverage guide and cotton-vest buying checks before choosing.

















