One of the core philosophies at Thermore is that the product should remain structurally stable over the life of the garment. If the insulation is allowed to break down, then the product becomes less thermally efficient- and also becomes prone to the problem of fiber migration. Essentially, fiber migration occurs when the polyester fibers that comprise the insulation are able to destabilize from the structure and find their way through the lining or shell of your outerwear. This can quickly give the garment a sub-standard appearance and also cover mid-layer clothing with an assortment of unsightly fibers. 

Thermore has solved the issue of fiber migration with a proprietary finishing process that keeps the polyester fibers stabilized during normal wear and machine washing. This ThermoreŽ safeguard is achieved without the use of a scrim, which adds cost, negatively effects the hand, and is only a short term solution. 

This is another example of built-in ThermoreŽ technology that enhances the quality of the end product.