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Dog harnesses

Line harness 5.0

An ergonomic and versatile short harness developed for hiking, tracking and everyday activities with your dog.
Expected delivery in 2 to 5 working days



It is no coincidence that the Line harness has been one of our best-selling dog harnesses throughout the years. Even though this harness was developed for activities like hiking and tracking, it can also be used for canicross, bikejoring and skijoring for dogs that do not pull hard on the leash.

The Line harness 5.0 has several attachment points for your dog’s leash, making this harness very versatile. In addition to the standard attachment point on the back, there is an attachment point for a tracking line under the chest. This allows your dog to move freely without having the line get tangled around its legs. From size 3 and up there is a third attachment point on the front for mild anti-pull control.

The Line harness 5.0 is an upgraded version of our original half harness, with optimized fit for your dog. The Y-shaped neck allows free shoulder movement and minimal breathing constraint.

Line harness 5.0 is adjustable around the chest. After the initial adjustment, it is easy to put the harness on and take it off by opening the solid Duraflex® buckles on each side. Lock the chest straps by simply threading the end of the strap back through the sliplock.

3M™ reflective details make your dog visible from several angles. All seams and edges on the inside of the harness are sewn so that the smooth side faces your dog’s body. The inner lining overlaps without any hard edges to prevent chafing. Our harnesses are made from durable, tightly woven nylon and have closed cell foam padding to prevent water seeping in. The Line harness 5.0 is reinforced with Hypalon on exposed areas.

This dog harness is available in the colors black, orange, blue, green, teal and purple, in sizes 1-8 (sizes 0-9 in black), to fit both small and big dogs.

Made for


Also works well for


Find the perfect size:

Size Chart

SizeNeck circumferenceChest
020-24 cm28-38 cm
123-27 cm30-42 cm
226-30 cm36-54 cm
328-32 cm39-62 cm
432-36 cm41-68 cm
536-40 cm52-78 cm
640-47 cm56-87 cm
746-51 cm61-92 cm
851-57 cm67-102 cm
957-63 cm70-112 cm
Size0 1 2 3 4 5 6 7 8 9
Neck circumference20-24 cm23-27 cm26-30 cm28-32 cm32-36 cm36-40 cm40-47 cm46-51 cm51-57 cm57-63 cm
Chest28-38 cm30-42 cm36-54 cm39-62 cm41-68 cm52-78 cm56-87 cm61-92 cm67-102 cm70-112 cm

Technical Specifications

  • Three connection points for line or leash (two on sizes 0-2)
  • Nylon ripstop
  • Nylon webbing
  • Hypalon reinforcements
  • Closed-cell foam core
  • Duraflex® buckles (bluesign® APPROVED)
  • 3M™ reflective
  • D-ring
  • Colors: Black, orange, blue , green, teal and purple
  • Sizes: 1-8 (size 0-9 in black)

Wash guide

Normal wash, 40°C.

Dimensions Line harness 5.0

0 1 2 3 4 5 6 7 8 9
Neck opening26 cm30 cm33 cm36 cm40 cm45 cm52 cm57 cm63 cm70 cm
Chest strap, width----------
Chest strap, length----------
Neck openingWeightChest strap, widthChest strap, length
026 cm---
130 cm---
233 cm---
336 cm---
440 cm---
545 cm---
652 cm---
757 cm---
863 cm---
970 cm---


How do I find the right size?
Measure your dog's neck and chest circumference, then enter the numbers into our size finder tool on the product page to receive a recommended size for your dog. If your dog falls between sizes, we recommend choosing the larger size for small or medium dogs (up to size 6). For large dogs (size 7 and up), we suggest opting for the smaller size if they are in between sizes.
Can I use Line harness 5.0 for pulling?
The Line harness 5.0 is an all-round everyday use harness that dogs can do a light pull in. The Line harness 5.0 is not intended for specific pulling activities such as canicross, bikejoring, or skijoring, but can be used for it if the dog is only a moderate puller. If your dog is pulling hard, we recommend using one our pulling harnesses that were developed for this purpose such as our Freemotion harness.
What is the loop under the harness for?
Your dog’s leash can be connected to the attachment point under your dog’s chest to avoid the line from getting tangled in its legs when doing activities like tracking.
How do I use the attachment point in front as mild anti-pull control?
If you want your dog to pull less, you can attach the leash to the front attachment point and put the line under your dog’s front leg. Please note that this is a helping tool. The attachment point is not designed to completely eliminate pulling or directly teach the dog not to pull.
How do I lock the adjustable chest straps?
After initial adjustment for your dog, lock the chest straps by simply threading the end of the strap back through the sliplock.
How long is the strap that goes under my dog’s chest?
The length of the strap can be found in the overview of the harness dimensions on this page.
How wide is strap that goes under my dog’s chest?
The width of the strap can be found in the overview of the harness dimensions on this page.
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