Introduction
The Mystery Ranch Blitz 35 Backpack is designed for versatility, supporting travel, adventure, and daily use. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your backpack to ensure optimal performance and longevity.
Features
The Blitz 35 Backpack incorporates several design elements for functionality and comfort:
- Cross-Functional Design: Built for diverse activities, measuring 21” x 12.5” x 14.5” with a 35.8-liter capacity and a weight of 4.4 lbs.
- Organized Storage: Features two external pockets, an organized lid pocket, internal webbing, and compression straps for adaptable load management. A padded laptop sleeve protects electronic devices. Ample side pockets with grommeted drain holes secure water bottles.
- Durability: Constructed with durable fabric and weather-resistant details to protect contents in various conditions.
- Comfort System: Equipped with a horseshoe panel loader opening for easy access, a patented adjustable shoulder harness, and a removable waist belt for weight distribution and lasting comfort.

Image: Side view of the Blitz 35 Backpack, illustrating key external features such as the organized lid pocket, horseshoe panel opening, compression straps, two external pockets, and side pockets with grommeted drain holes.

Image: Interior view of the Blitz 35 Backpack, showcasing the padded laptop sleeve for electronic devices and internal webbing for securing gear.

Image: Back panel of the Blitz 35 Backpack, detailing the adjustable shoulder harness, removable waist belt, and weather-resistant elements designed for comfort and durability.
Setup: Adjusting Your Backpack
Proper adjustment of your Blitz 35 Backpack is crucial for comfort and efficient weight distribution. Follow these steps to find your correct size and adjust the harness system.
1. Determine Your Size
To ensure the best fit, measure your waist circumference and torso length.
- Waist Circumference: Measure around your waist just above the top of your hip bones (approximately two fingers below the belly button).
- Torso Length: Use a tailor's tape or string. Have a friend measure between the bony bump at the base of your neck (C7 vertebra) to the spot on your spine directly behind your belly button.

Image: Diagram illustrating the correct method for measuring waist circumference and torso length to determine the appropriate backpack size.
2. Sizing Chart
Refer to the following chart to match your measurements with the available backpack sizes:
| S/M | L/XL | |||
|---|---|---|---|---|
| Torso | Waist | Torso | Waist | |
| Size | S/M | S | L/XL | L |
| Inches | 15-20 in | 26-36 in | 17-24 in | 35-40+ in |
| Centimeters | 38-51 cm | 66-91 cm | 43-61 cm | 89-102+ cm |
Note: If you are between sizes on the waist belt, it is generally recommended to size down.

Image: Detailed sizing chart for Mystery Ranch backpacks, providing torso and waist measurements for Small/Medium and Large/X-Large sizes.
3. Adjusting the Harness and Waist Belt
Once you have determined your size, adjust the shoulder harness and waist belt to comfortably distribute the pack's weight. The shoulder straps should sit firmly on your shoulders without excessive pressure, and the waist belt should rest on your hip bones to transfer most of the load.

Image: Back view of the Blitz 35 Backpack, illustrating the adjustable shoulder harness and waist belt components for personalized fit.
Operating Instructions
Familiarize yourself with the various compartments and access points of your Blitz 35 Backpack.
Main Compartment Access
The main compartment features a horseshoe panel loader opening, allowing for wide and easy access to your gear. Unzip the main zipper to fully open the front panel.
Organizing Your Gear
- Lid Pocket: Use the organized lid pocket for quick-access items like keys, wallet, or small electronics.
- External Pockets: The two external pockets provide additional storage for items you need to grab frequently.
- Padded Laptop Sleeve: Secure your laptop or tablet in the dedicated padded sleeve inside the main compartment.
- Internal Webbing & Compression Straps: Utilize the internal webbing and external compression straps to stabilize your load and prevent shifting during movement.
- Side Pockets: The ample side pockets with grommeted drain holes are ideal for water bottles or other tall items, ensuring they stay secure and any condensation drains away.
Official Product Video
Video: An official overview of the Mystery Ranch Blitz 35 Backpack, demonstrating its features and functionality.
Maintenance
Proper care will extend the life of your Mystery Ranch Blitz 35 Backpack.
- Cleaning: Spot clean with mild soap and water. Use a soft brush or cloth to gently scrub soiled areas.
- Drying: Air dry the backpack completely in a well-ventilated area, away from direct sunlight or heat sources.
- Avoid Machine Washing: Do not machine wash or tumble dry, as this can damage the fabric, coatings, and structural components of the backpack.
- Storage: Store your backpack in a cool, dry place when not in use.
Troubleshooting
Here are some common issues and solutions for your backpack:
- Uncomfortable Fit: Re-evaluate your torso length and waist circumference measurements. Adjust the shoulder harness and waist belt according to the 'Setup' section to ensure proper weight distribution.
- Zippers Sticking: Apply a small amount of zipper lubricant or graphite from a pencil to the zipper teeth. Gently work the zipper back and forth.
- Wet Interior: Ensure all zippers are fully closed and flap covers are secured during rain. While the backpack has weather-resistant details, heavy downpours may require a rain cover for complete protection.
- Load Shifting: Utilize the internal webbing and external compression straps to cinch down your load. Pack heavier items closer to your back and centered.
Specifications
| Specification | Detail |
|---|---|
| Model | Blitz 35 |
| Color | Black |
| Size | Large-X-Large |
| Storage Volume | 35.8 Liters |
| Dimensions | 21” x 12.5” x 14.5” |
| Weight | 4.4 lbs |
| Material Type | Nylon, Polyester |
| Water Resistance Level | Water Repellent |
| Number of Pockets | 10 |
| Number of Compartments | 5 |
| Strap Type | Adjustable Shoulder Strap, Waist Strap |
| Closure Type | Zipper |
| Product Care | Spot clean with mild soap and water. Avoid machine washing. |
Warranty and Support
For warranty information, product support, or to explore other Mystery Ranch products, please visit the official Mystery Ranch store or contact their customer service directly.
Official Mystery Ranch Store: Visit Store