The X-Pac X42 line is engineered for gear that needs exceptional strength and durability without extra weight. Featuring a 420D face and its signature "X" design, this waterproof shell is built to perform in any season, location, or condition.

Inspired by 35 years of expertise in crafting advanced sailcloth, Challenge Outdoor developed ECOPAK as the world's only durable and waterproof fabric made entirely from 100% recycled polyester film and fiber. EPX400 The 400d recycled polyester has almost twice the abrasion resistance compared to 420d nylon. Well suited for packs for highest overall durability.

The P400 Wax C4X is a high-end shell crafted from a unique cotton and wax-finished fabric. This exceptional material comes from Halley Stevensons, a historic mill in Scotland renowned for its quality textiles. This waxed canvas is notably stiff and durable, built to withstand the elements and rigorous use. Designed to improve with age, it will develop a distinctive character over time, making each piece truly unique.