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The Trion Spine 35 takes even difficult ascents in stride. Thanks to a suspension system featuring Active Spine™ Technology and integrated height adjustment, the backpack allows greater freedom of movement for the shoulders and hips, resulting in a more natural gait. It also ensures optimal load transfer during all walking movements, even when carrying a heavy load. With a capacity of 35 litres, an additional front opening, and a range of features, the Trion Spine 35 offers everything an alpinist's heart desires.

Trion Spine 35

Practical and comfortable alpine and trekking backpack

Perfluorinated compounds (PFCs) are often used for waterproofing but are practically non-biodegradable. Mammut is committed to replacing non-biodegradable fabric treatments with more sustainable high-performance alternatives.

PFC-free DWR

Fair Wear works to ensure fair and safe working conditions in garment factories. The non-profit engages directly with factories, trade unions, NGOs and governments to protect workers’ rights.

Fair Wear

Mammut Active Spine Technology™

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medium

Easy to access and organize via additional front opening

Top and front loading

Excellent air circulation for more comfort on long mountain tours

Back ventilation

Choose between three back lengths with a single pull

Height adjustment system

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Mountaineering SS22 Petit Clocher du Portalet 10

Trion Spine 35 - 2520-00860

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Shipping & Returns

Delivery

We aim to process all orders as quickly as possible. Delivery time are normally 2-5 business days. You will receive a dispatch confirmation including a tracking number as soon as we have transferred the order to our logistics partner.

Free shipping from 50 EUR

Shipping is free for purchases from $50. For orders below this purchase value, shipping costs of $9.99 will be applied.

Free shipping from $50

Return period

We offer returns within 30 days for full-price items and 14 days for sale items.