The Ruffwear Singletrak Pack is widely considered the “Goldilocks” of dog hydration packs. It hits that sweet spot for owners who need more than a standard harness but don’t want the bulk of a full multi-day trekking pack.
Its essentially a low-profile hydration vest designed for high-energy days on the trail.
Core Features & Benefits
| Feature | Details |
| Hydration Included | Comes with two 0.6L collapsible, BPA-free bladders (1.2L total). |
| Saddlebag Design | Low-profile, body-hugging bags prevent shifting or “flopping” while your dog runs. |
| Harness Chassis | Built on the reliable Web Master harness frame with 5 points of adjustment. |
| Handle & Leash | Features a reinforced padded handle for lifting/assisting and two leash attachment points. |
| Visibility | Includes reflective trim and a dedicated light loop for “The Beacon” safety light. |
Why Its a Fan Favorite
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The “Anti-Chafe” Build: Because its sleek, it doesnt interfere with a dog’s shoulder movement. Its perfect for trail running or mountain biking where speed and agility are key.
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Weight Distribution: The bladders sit close to the dog’s center of gravity. Just remember the golden rule: A dog should generally not carry more than 10-25% of their body weight.
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Versatility: Even without the water, the small side pockets are great for pick-up bags, a collapsible bowl, or a small first-aid kit.
Things to Consider
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Minimal Storage: If youre looking to pack a weekends worth of kibble and gear, this isn’t it. This is a “day trip” pack.
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Cooling: While it doesn’t have the “swamp cooler” tech built-in, the ice-cold water in the bladders against the dog’s ribs can provide a slight cooling effect on hot days.
Pro-Tip for Fit
When fitting your dog, ensure you can fit two fingers comfortably under all straps. If the pack is sliding to one side, its usually because the water levels in the two bladders are uneventry to keep them balanced as your dog drinks!
Ruffwear Singletrak Size Chart
Ruffwear uses a standard sizing scale across most of its harness-based packs. If your dog is between sizes, Ruffwear generally recommends sizing down for a more secure, “flop-free” fit, unless your dog is still a growing puppy.
| Size | Girth (Inches) | Girth (Centimeters) |
| Small | 2227 in | 5669 cm |
| Medium | 2732 in | 6981 cm |
| Large / XL | 3242 in | 81107 cm |
How to Measure Correctly
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Find the Widest Part: Use a soft tailors tape (or a piece of string you can measure against a ruler later).
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The “Two-Finger” Rule: When the pack is on, you should be able to fit two fingers snugly between the straps and your dogs fur.
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Check for Elbow Clearance: Ensure the front chest strap doesn’t sit so close to the armpits that it rubs when the dog runs. There should be a “hand’s width” of space between the front legs and the girth strap for most medium-to-large dogs.
Quick Fit Check
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Balance the Load: The Singletrak is designed to sit close to the body. If the pack is sliding to one side, check that your water bladders have roughly equal amounts of water.
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Adjust Five Points: This pack has five points of adjustment (two on the neck, three on the belly/chest). Take the time to dial these in while the dog is standing naturally.
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