Topo Designs has taken their already popular Klettersack and made it even better. The pack that’s billed as the brand’s “ultimate travel companion” is now able to take on any kind of weather that Mother Nature can throw at it, thanks to an innovative X-Pac material that boasts multiple layers, laminated together over a waterproof membrane. Diamond-pattern X-Ply provides even more strength across the bias, traditionally the weakest part of the pack. Additionally, the X-Pac is combined with Ballistic 1050D Cordura to finish the exterior, while the inner compartment is lined entirely with coated pack cloth. Natural leather lash tabs — ideal for securing extra gear or attaching a bike light — round out the details. Best of all, the Klettersack X-Pack is made locally in Colorado.