• Unisex
• Total capacity: 6 L
• Front pocket capacity: 2 L
• Back capacity: 2.5 L
• Holds up to 3 x 500 ml flasks
• Patented LowGravity FlaskPocket™ technology: 17° angled pockets reducing bounce sensation by a factor of 4
• Patented SideDraw™ instant side flask access
• Back FlaskLock Pocket™ for 500 ml flask, bounce-free
• SpineTech™ frame developed with Taiana, vertically rigid and horizontally elastic
• FlaskLeash™ elastic cord for additional flask neck support
• Modular Zipper™ self-locking zip with Breath Clips
• FlowPocket™ front pocket (80% max elongation)
• CrossLock Pocket™ (50 ml) for keys or earphones
• Integrated safety whistle compliant with ultra-trail requirements
• Outstretch™ technology: pockets adapting to contents and expanding outward
• Dual Reach Tunnel™ pocket accessible from the front for waterproof jacket
• QuiverNest™ attachment points for pole quiver
• Ventilated stretch mesh back for optimal thermoregulation
• Estimated lifespan: over 10,000 km

The Running Bag 331 combines lightness and breathability in a 6-litre format designed for fast trails and minimalist ultras. Its 17°-angled flask pockets via patented LowGravity technology facilitate on-the-run hydration and reduce bounce sensation by a factor of four. SideDraw™ side access allows instant flask storage and retrieval, even when front pockets are full. The SpineTech™ frame, co-developed with textile partner Taiana, combines vertical rigidity and horizontal elasticity for a stable anatomical fit at high speed. The ventilated mesh back and Outstretch™ technology ensure consistent thermoregulation regardless of the carried load.

Made in Portugal.