5L ultra-light running hydration backpack – trail running vest pack with 500ml flasks & 2L water bladder for marathon & biking
5L ultra-light running hydration backpack – trail running vest pack with 500ml flasks & 2L water bladder for marathon & biking
5L ultra-light running hydration backpack – trail running vest pack with 500ml flasks & 2L water bladder for marathon & biking
5L ultra-light running hydration backpack – trail running vest pack with 500ml flasks & 2L water bladder for marathon & biking
5L ultra-light running hydration backpack – trail running vest pack with 500ml flasks & 2L water bladder for marathon & biking
5L ultra-light running hydration backpack – trail running vest pack with 500ml flasks & 2L water bladder for marathon & biking
5L ultra-light running hydration backpack – trail running vest pack with 500ml flasks & 2L water bladder for marathon & biking
5L ultra-light running hydration backpack – trail running vest pack with 500ml flasks & 2L water bladder for marathon & biking
5L ultra-light running hydration backpack – trail running vest pack with 500ml flasks & 2L water bladder for marathon & biking

5L ultra-light running hydration backpack – trail running vest pack with 500ml flasks & 2L water bladder for marathon & biking

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Color: and 2 500ml 2L
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Shipping & Delivery

Enjoy free shipping on orders over $29.99. A flat $4.99 shipping fee applies to smaller orders.

Things to Keep in Mind

Returns Policy

Most new and unopened items qualify for returns within 30 days of delivery.

Eligible return shipping costs are covered by us. Certain items, including custom products, limited editions, hygiene-sensitive items, oversized items, and final sale products, may not be eligible for return.

Refund Timeline

Most refunds are completed within 5–7 business days after the returned item is received and inspected.

This timeline may include:

  • 5–10 business days for return transit
  • 3–5 business days for inspection and processing
  • 5–10 business days for your bank to finalize the refund

How to Return an Item

To start a return, please visit your account and go to your order history. Once your request is submitted, you will receive an update by email after the return is reviewed and processed.

Shipping Information

We currently ship within the United States.

Free shipping is available on orders of $29.99 or more. Orders below $29.99 are subject to a flat $4.99 shipping fee.

Orders are typically processed within 1–2 business days. Estimated delivery times shown on product pages reflect both processing time and transit time.

Minor delays may occur due to carrier or weather conditions.

Why Customers Choose PulinGO

Carefully Selected Products
Carefully Selected Products
Curated for quality, value, and everyday practicality.
Fast & Reliable Delivery
Fast & Reliable Delivery
Tracked shipping across the U.S. with clear delivery estimates.
Real Customer Support
Real Customer Support
Helpful human support before and after your purchase.

Stay hydrated and perform at your best with this 5L ultra-lightweight running backpack, designed as a hydration vest pack for marathons, trail running, cycling, and outdoor training. Its ergonomic design ensures comfort without slowing you down.
🏃 Built for endurance athletes.

Crafted from breathable, sweat-resistant mesh fabric, it offers excellent ventilation to keep you cool during intense workouts. Lightweight construction ensures you barely notice it’s there.
💨 Comfort that moves with you.

The 5L capacity includes multiple compartments for essentials like energy gels, keys, and phones, along with dedicated hydration storage. Perfect balance between size and utility.
🎒 Compact yet practical.

Comes with two 500ml soft flasks and a 2L hydration bladder, ensuring you stay refreshed throughout your runs or bike rides. Easy-access design lets you sip on the go.
💧 Hydration without interruption.

The adjustable chest and waist straps provide a secure, bounce-free fit for maximum stability even during high-speed movement.
💪 Stay focused, stay supported.

Whether training for a marathon, hitting mountain trails, or cycling long distances, this hydration backpack is a reliable companion for peak performance.
🌟 Designed for athletes who go further.


📦 Package Includes

Package Includes

  • 1 × 5L Ultra-Light Running Hydration Backpack

  • 2 × 500ml Soft Flasks

  • 1 × 2L Hydration Bladder

  • 1 × Adjustable Chest Strap System

  • 1 × Waist Support Strap

  • 1 × User Guide


❓ Frequently Asked Questions (FAQ)

Q: What is the capacity of the bag?
A: It has a 5L capacity with space for hydration and essentials.

Q: Does it include bottles?
A: Yes—comes with 2 × 500ml soft flasks and a 2L bladder.

Q: Is it lightweight?
A: Absolutely—it’s designed for ultra-light running and cycling.

Q: Can it prevent bouncing while running?
A: Yes—adjustable straps ensure a secure, bounce-free fit.

Q: Is it breathable?
A: Yes—made with ventilated mesh fabric for airflow.

Q: Suitable for marathons?
A: Definitely—perfect for long-distance running and races.

Q: Can it be used for biking?
A: Yes—it’s great for cycling, hiking, and outdoor sports.


⚙️ Technical Specifications

Feature Description
Material Breathable Mesh + Nylon Fabric
Capacity 5 Liters
Hydration System 2 × 500ml Soft Flasks + 2L Bladder Included
Strap Type Adjustable Chest + Waist Straps
Weight Ultra-Light (~0.6 lbs / 280g)
Ventilation Sweat-Resistant Mesh Panels
Dimensions 40 × 25 × 10 cm (Approx.)
Resistance Water-Resistant & Wear-Resistant
Use Cases Running, Trail Running, Cycling, Hiking
Durability Reinforced Stitching for Outdoor Performance

🔒 The PulinGO Promise

🔄 30-Day Returns – Hassle-free exchanges/refunds for complete peace of mind.
📞 24/7 Support – Always available to ensure your training is smooth and stress-free.