Why Proper Fit Matters

Giant breeds carry mass, muscle and force.
Standard sizing methods are built for average dogs not structural power.

Improper positioning can cause:

• Rotation under tension
• Uneven pressure distribution
• Skin irritation
• Reduced control

Fit is not about size.
It is about structure.

Quickstart

  • What You Need


    A soft measuring tape.
    If unavailable, use a string and measure it against a ruler.

  • Where To Measure


    Collar: Base of the neck.
    Harness: Deepest part of the chest behind the front legs.

  • How Tight


    Measure snug.
    Do not add space or fingers during measurement.

The Collar Protocol: Position

Measure at the structural base of the neck, where the neck meets the shoulders.
This is the most stable anchor point for wide collars on giant breeds.

Measuring too high toward the ears leads to instability and rotation under tension.

The Collar Protocol: Measurement Tension

When measuring, place the tape snug against the neck.

Do not insert fingers and do not add extra space.
The measurement must reflect the true neck circumference.

Adjustment room is defined later through the collar’s hole range.

NOT DURING MEASUREMENT!

The Collar Protocol: Fit Check

After selecting the correct size and fastening the collar, perform a structural fit check.

Two flat fingers should slide underneath without force.
The collar must remain stable and should not rotate freely or move upward toward the ears.

Measurement is precise.
Fit is verified after fastening.

The Harness Protocol

Share information about your brand with your customers. Describe a product, make announcements, or welcome customers to your store.

Chest Girth Measurement

Measure all around your dog’s chest:

Start at the lowest point behind the front legs.
Guide the tape upward over the back.
Return down to the starting point.

This is the only measurement required to determine proper size.

The measurement should fall within the middle range of the selected size.

Harness Structural Design

  • Dual Chest Straps


    Two independent chest straps distribute force evenly across the rib structure.

    This prevents lateral shifting and increases stability under tension.

  • Load Distribution


    Pressure is transferred across a wider surface area instead of concentrating at a single point.

    This protects the chest and maintains controlled movement.

  • Stability Under Motion


    A properly structured harness remains aligned during walking, training and directional changes.

    No twisting. No collapsing. No imbalance.

HARNESS SIZE GUIDE

The only measurement required is Chest Girth.
Measure around the deepest part of the chest, directly behind the front legs.

M
19.7–29.5 IN
(50–75 CM)
Lower Neck: 13.8–22.8 in (35–58 cm)
L / XL
23.6–45.3 IN
(60–115 CM)
Lower Neck: 17–25 in (43–63.5 cm)
XXL
37.4–57 IN
(95–145 CM)
Lower Neck: 21–33 in (53–83.5 cm)
For optimal structural alignment, your measurement should fall near the center of the selected range.

Final Fit Confirmation

Once fitted, the harness must lie flat against the body without lifting or shifting.

It should remain aligned across the chest and back under natural movement.

There must be no lateral twisting, no forward sliding and no restriction of shoulder mobility.

Proper fit ensures structural balance not just comfort.

Between Two Sizes?

If your measurement sits exactly between two ranges:

• Choose the larger size for growing dogs.

• Choose the size that keeps your measurement closer to the center of the range.

• Never select a size where your measurement touches the extreme minimum or maximum.

Proper structural alignment always depends on balanced adjustment room.