This is absolutely perfect. Ease of loading and unloading along with typical Zpacks quality. Fits great and weighs nothing. 

– Mark P., ★★★★★

The Bagger Ultra 25L is an ultralight frameless pack perfect for bagging peaks in the Adirondacks or for carrying around town. Featuring a small and streamlined design, the Bagger can be packed down small as a secondary pack for summit side trips or used as an ultralight minimalist pack for short adventures into the backcountry. The Bagger Ultra utilizes an included, easily removable foam sit pad as a frame and padding against your back.

The perfect ultralight frameless pack for peak bagging, overnighters, and short trips, the Sub-Nero Ultra is a smaller and slightly more stripped down version of our popular Nero Ultra Backpack.

Streamlined to only the most essential features, the Sub-Nero Ultra is great for hikers with dialed in base weights and minimalist kits.

Featuring an included sit pad, an optional webbing belt, and a variety of optional modular add-ons, the highly versatile Sub-Nero Ultra allows you to get the most out of any day, section, or thru-hike.

I think it's the final form of backpacking. The size, weight and specifications are simple and very easy to use.

– Yokoyama H., ★★★★★

**This backpack has been replaced by our newer Sub-Nero Ultra. It has a similar design but is constructed with a more durable Ultra material and a slightly modified feature set.

The perfect ultralight frameless pack for a SUL thru-hike or a lightweight overnighter, the Sub-Nero is a smaller and slightly more stripped down version of our popular Nero Backpack.

Streamlined to only the most essential features, the Sub-Nero is great for hikers with dialed in base weights and minimalist kits.

Featuring a sit pad, and a variety of optional modular add-ons, the highly versatile Sub-Nero allows you to get the most out of any day, section, or thru-hike.

The Nero Ultra is a compact frameless backpack streamlined to only the most essential features making it great for hikes where less weight and volume is required.

Multiple thru-hikes of the Triple Crown trails have been completed with our Nero series backpacks, helping to prove that smaller volume frameless packs are a legitimate approach to long-distance hiking.

Featuring an optional removable belt, an included sit pad, and a variety of optional modular add-ons, the highly versatile Nero Ultra will allow you to get the most out of any day, section, or thru-hike.

This backpack was the ultimate step into the right direction! The value of this pack surpasses almost all my other gear, without it, the path to a lighter future would never have been taken. The quality of the pack, the weight, the effortless comfort all adds to the beauty of the simple design. Only carry what you need and have no fear. The beauty of a sub 10 base weight starts here 😁  and the Nero makes it all possible!

– Daniel T., ★★★★★

**This backpack has been replaced by our newer Nero Ultra. It has a similar design but is constructed with a more durable Ultra material and a slightly modified feature set.

Designed for hikers pushing their limits and obsessing over every gram.  The ultralight Nero is a compact frameless backpack streamlined to only the most essential features making it great for hikes where less weight and volume is required.

Multiple thru-hikes of the Triple Crown trails have been completed with the Nero, helping to prove that smaller volume frameless packs are a legitimate approach to long-distance hiking.

Featuring a removable webbing belt, sit pad, and a variety of optional modular add-ons, the highly versatile Nero will allow you to get the most out of any day, section, or thru-hike.

The Sub Nero is definitely the best pack for ultralight backpackers that have their kit stripped down.

– David W., ★★★★★

**This backpack has been replaced by our newer Sub-Nero Ultra. It has a similar design but is constructed with a more durable Ultra material and a slightly modified feature set.

The perfect ultralight frameless pack for a SUL thru-hike or a lightweight overnighter, the Sub-Nero is a smaller and slightly more stripped down version of our popular Nero Backpack.

Streamlined to only the most essential features, the Sub-Nero is great for hikers with dialed in base weights and minimalist kits.

The ROBIC® version of the Sub-Nero is highly durable and provides added abrasion resistance over the DCF version.

Featuring a sit pad, and a variety of optional modular add-ons, the highly versatile Sub-Nero allows you to get the most out of any day, section, or thru-hike.

This is absolutely perfect. Ease of loading and unloading along with typical Zpacks quality. Fits great and weighs nothing. 

– Mark P., ★★★★★

The Bagger Ultra 40L is an ultralight frameless pack perfect for mutli-day treks in the Adirondacks or for carrying around town. Featuring a small and streamlined design, the Bagger can be packed down small as a secondary pack for summit side trips or used as a primary ultralight minimalist pack for adventures into the backcountry. The Bagger Ultra utilizes an included, easily removable foam sit pad as a frame and padding against your back.