Yes, it is possible to make an elastic waistband smaller without sewing by manipulating the existing elastic inside the waistband casing.
Non-Sew Method Using Internal Elastic Manipulation
Based on available methods and the reference provided, one technique involves accessing and cinching the elastic already threaded through the waistband without cutting or sewing the main fabric seam.
The reference describes the action involved:
- The process begins "Through the jeans." This implies accessing the elastic within the waistband casing via a point on the garment itself, possibly without creating a new opening.
- Next, you need to "pull back to make the elastic. Go through". This action involves drawing the existing elastic tighter inside the waistband channel and potentially guiding it through a part of the waistband structure to take up the slack and reduce the overall size.
This method is noted to be "a very time consuming thing". Patience is key, as "It will take time but you can do it." While the exact details of how to initially access the elastic "Through the jeans" or how it is made to "go through" to secure the reduction are not fully detailed in the brief description, the core technique involves working with the internal elastic to pull it shorter and keep it that way without traditional sewing.
This non-sewing approach focuses on adjusting the tension of the hidden elastic band responsible for the waistband's stretch and fit.