Salomon Cross 4 Trail Running Backpack 4L Black

Hit the trails with everything you need close at hand. The Salomon Cross 4 is a lightweight 4-liter backpack built for trail runners, hikers, and cyclists who want minimal bulk without sacrificing hydration or storage. Its Airvent Agility back system keeps air flowing to reduce sweat, while the padded shoulder straps and adjustable sternum strap lock the pack in place over technical terrain. A dedicated internal sleeve holds a 1.5L hydration bladder (not included), so you can sip on the move, and the four pockets—one main, one internal, two mesh side—organize gels, keys, and a light shell. Reflective details add visibility for dawn patrols and dusk finishes. Made from 100% polyester and PFC-free, it's a clean choice for everyday adventures.

Key specifications

• Capacity: 4 liters
• Weight: 207 g
• Dimensions (H x W x D): 39 x 20 x 1 cm
• Material: 100% polyester (body and lining)
• Hydration compatible: internal sleeve for 1.5L bladder (not included)
• Pockets: 1 main, 1 internal, 2 mesh side
• Closure: zipper
• Back system: Airvent Agility
• Shoulder straps: padded, adjustable
• Sternum strap: adjustable, elastic
• Reflective details: yes
• Gender: unisex
• PFC-free: yes

Why choose it

The Cross 4 strips away excess weight while keeping essential gear organized and accessible. Its breathable back panel and secure fit let you focus on the trail, not your pack. The hydration sleeve means you can carry water without a bulky bottle, and the mesh side pockets are perfect for quick-grab items. Plus, the PFC-free construction aligns with eco-conscious choices.

Ideal use cases

• Trail running and ultralight hiking
• Cycling and mountain biking
• Everyday carry for commuters who want a compact pack
• Travel as a packable daypack

Good to know

The pack is top-loading with a zipper closure. It is not waterproof, so use a rain cover in heavy downpours. The 1.5L bladder is not included—pair it with a Salomon reservoir for a perfect fit. Reflective details enhance visibility in low light, but always carry a light for night runs.