The exceptional, curled fibers with barbed edges provide the fibers an interlocking feature that gives takes advantage of in many markets and for various programs. Our Curlex® excelsior cooler pads are produced from the cleanest, hardest, and most reliable all natural aspen wood fibers offered, for outstanding cooling general performance. https://edenproductsltd.co.uk/2025/03/21/why-natural-wood-wool-is-one-of-the-best-eco-friendly-packaging-materials/