ULTRA 80 X, backpack-laminate with UHMWPE, 84g/sqm

Challenge Sailcloth has enhanced its ULTRA backpack laminates with additional crossply and a slightly sturdier carrier film. This new X variant is more dimensionally stable and, thanks to the thicker film, more reliably waterproof. The ULTRA X laminates have a 3-layer structure: the outer layer is a fabric made of high-strength UHMWPE fibers. UHMWPE fibers are currently considered the ultimate in tear resistance and abrasion resistance. The strong, white Ultra fibers, arranged in a diamond pattern between the layers, increase tear resistance and prevent the material from stretching in all directions. A waterproof polyester film is laminated onto the inside. Thanks to 100% UHMWPE fibers for the outer fabric, even this very lightweight ULTRA version achieves technical values in terms of abrasion resistance and tear resistance that are on par with significantly stronger Cordura® fabrics. The polyester film ensures that ULTRA X is reliably waterproof and has very good dimensional stability. The range of applications is determined by the strength of the outer fabric and the associated abrasion and tear resistance.

When developing the ULTRA laminates, Challenge Sailcloth focused on sustainability in addition to performance:

- The PES film used is made from 100% recycled polyester from post-consumer PET bottles

- Recycled polyester is used for the polyester content in the outer fabric, depending on market availability. If you value guaranteed 100% recycling, we recommend Challenge Sailcloth's ECOPAK® laminates.

- Only FC-free C0 impregnations are used

- No VOCs (Volatile Organic Compounds) are used in the production of ULTRA, all adhesives are solvent-free

- Thanks to an innovative production process, energy-intensive drying processes during lamination are reduced

ULTRA 80 X uses 100% UHMWPE fibers for the outer fabric. This achieves maximum abrasion resistance, tear resistance, and durability with a weight of only 84g/sqm. The white Cross Ply Ultra fibers in the middle layer increase dimensional stability and tear resistance. This blend is combined with a waterproof and UV-stable polyester film on the inside. The result is the ultimate in ultra-lightweight backpacks and bags. Areas subject to heavy point loads, such as shoulder strap attachments or daisy chains, should be reinforced with an additional layer of fabric to prevent tearing due to the thin material.