Mammut Trion Spine

Unlike rigid frames, the Active Spine system is designed to mimic the natural rotation of your shoulders and hips as you walk. This allows your upper and lower body to move independently, which significantly improves balance and reduces fatigue on uneven, technical terrain.

At 35 liters, this pack is optimized for demanding day-long alpine missions or ultralight overnight trips. If you are planning to carry heavy camping gear for multiple days, you may find the capacity limiting.

Yes. In addition to the standard top-loading access, the pack features a large front zipper that opens wide, allowing you to reach items at the bottom of the main compartment without unpacking everything.

Yes, the suspension system is height-adjustable. This is critical for getting the weight distribution right, especially when carrying heavier loads, as it ensures the hip belt and shoulder straps sit correctly on your specific frame.

It is built specifically for alpine environments. It includes dedicated, reinforced attachments for ice axes and trekking poles, as well as side attachments designed to carry skis securely when you need to transition to boot-packing.

The pack uses a durable, weather-resistant material with a PFC-Free DWR treatment, which will shed light rain and snow effectively. However, it is not fully waterproof, so we recommend using a pack liner or dry bags for sensitive electronics during heavy storms.