Flat cap snaps sized 11.5 mm for lightweight wovens and knits that need a clean closure with a pop of colour. The smooth enamel cap reduces bulk on cuffs and pocket flaps, and the compact diameter works well on babywear and casual shirts. Install with a compatible setter by pairing cap/post with socket/stud components. A simple way to add functional colour accents while keeping closures comfortable against the skin and unobtrusive under top‑stitching on everyday garments.