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Unisex nan lighter Trailrunning hydration backpack with hip belt pockets, hydration bladder compartment, and breathable back padding Kalsten

Unisex nan lighter Trailrunning hydration backpack with hip belt pockets, hydration bladder compartment, and breathable back padding Kalsten

Name: Unisex nan lighter Trailrunning hydration backpack with hip belt pockets, hydration bladder compartment, and breathable back padding Kalsten
Brand: Kalsten
SKU: 6042766376366
Price: 55.99 USD
Availability: InStock

$55.99 $111.99 SAVE $56.00 (50% OFF)

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Color

Royal blue (without hydration bladder)

Gray (without hydration bladder)

Dark blue (without hydration bladder)

Sky blue (without hydration bladder)

Orange (without hydration bladder)

Black (without hydration bladder)

Size

20 L

Lightweight Trail Running Hydration Backpack from Kalsten

The Kalsten Trail Running Hydration Backpack has been specially designed for demanding outdoor activities. Whether it's trail running, mountain biking, day hiking, or a quick fitness round — this compact backpack combines low weight with intelligent functionality. Robust materials, thoughtful organization, and maximum freedom of movement make it the ideal companion for active athletes.

Main Features

Hydration-ready: separate bladder compartment with practical outlet for the drinking tube and secure tube routing on the shoulder straps
Ergonomic carrying system: anatomically shaped shoulder straps and a breathable, contoured back padding for optimal ventilation and comfort
Waist and chest attachments: adjustable chest strap and padded hip belt with integrated zippered pockets for energy bars, smartphone, or keys
Organization: multiple front and side pockets as well as an easily accessible compartment for small items and tools
Reflective details: reflective surfaces ensure better visibility in twilight and poor lighting conditions
Durable material: abrasion-resistant, water-repellent ripstop fabric for long durability at low weight
Adjustability: flexible compression straps and retention loops for jacket, helmet, or trekking poles

Benefits for the Athlete

Maximum freedom of movement due to slim silhouette and close-fitting design
Quick access to nutrition and equipment without heavy load changes
Optimal body climate thanks to the ventilated back reduces friction and sweating
Versatile use: ideal for running, cycling, hiking, and as a travel backpack for light day packs

Technical Notes & Care

For cleaning, wipe with mild detergent and lukewarm water. Rinse and dry the bladder separately before insertion. Regularly check seams and zippers to ensure long functionality.

Kalsten stands for thoughtful outdoor equipment: compact, functional, and durable — your ideal companion for every active challenge.

Free standard shipping on all orders. No minimum purchase.

Ships to: United States
Processing: 1–4 business days (Mon–Fri)
Transit: 5–10 business days
Total delivery time: 6–14 business days
Order cut-off: 5:00 PM PST

You will receive a tracking number by email once your order ships. Please allow up to 48 hours for tracking to update.

See our full Shipping Policy.

You have 14 days from delivery to request a return.

Email support@open.shop with your order number to start a return.
Items must be unused, complete, and in their original packaging.
Return label: flat $9.99 USD, deducted from your refund — nothing to pay upfront.
Damaged, defective or incorrect items: we cover all return and replacement costs.
No restocking fees.
Exchanges: contact us and mention "exchange" — the new item ships once your return arrives.
Refunds are issued within 7 business days of inspection.

See our full Return Policy.

Questions about your order or our products? We're happy to help.

Open
Hooizolder 214
Drachten Friesland 9205CD
Netherlands

Email: support@open.shop

Customer Service:
Monday to Friday, 8:00 AM – 6:00 PM PST (excluding public holidays)

We reply to all messages within 24 hours on business days. Weekend messages are answered on Monday.

For quick answers, visit our FAQ page or use our Contact Form.

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