ULTRA SUMMIT BUM™  

Discover the pinnacle of lightweight durability with the Ultra Summit Bum™ Classic – where innovation meets functionality.

The ULTRA Summit Bum™ is the lightest version of our most coveted model, setting a new standard for lightweight versatility.

Crafted from Challenge® Ultra 200, a woven ultra-high-molecular-weight polyethylene material, this pack is a marvel of feather-weight water-resistance.

The Summit Bum™ series is not merely a hip-pack; it's a versatile companion for your backpack. Clip it onto your hip, wear it on your chest, sling it over your shoulder. . . however you need! A simple and clean design invites you to adapt it effortlessly to your specific needs.

It has inspired imitations which pale in comparison to the fully-loaded brilliance of the Summit Bum.™

At Thrupack, we aim for the apex of lightweight durability a design that holds up to everything your adventure throws at it, without impeding your movement.

Customize your adventure with a removable strap and two attachment points on the back. This isn't just a pack; it's an extension of your exploration spirit, ready to evolve with your every move.

Pair the Summit Bum™ with a Comfy Strap™ for the ultimate adventure luxury. Because every journey should not only be bold but also supremely comfortable.

Your Adventure Awaits:

It's not just a pack; it's a commitment to unbounded exploration. Elevate your adventure with the ULTRA Summit Bum™ where simplicity meets supreme functionality.