Part 1- Bustyzip (2026)

: Never cut your back zipper allowance in a straight line. Your back is naturally curved; tapering the allowance at the waist prevents the fabric from bunching.

are popular because they offer a "cozy yet breezy" fit that accommodates a larger chest without feeling restrictive. Part 1- Bustyzip

: Use the formula (Bust - Underbust) / 2 to calculate how much "shaping" or curvature you need below the bust. This ensures the garment (and its zipper) sits flush against your skin. : Never cut your back zipper allowance in a straight line