Rex Specs

How to Fit Rex Specs Goggles on a Puppy: A Step-by-Step Guide

How to Fit Rex Specs Goggles on a Puppy: A Step-by-Step Guide

By Rex Specs | Published: 2026-08-29

Category: How-to Guides

Learn how to fit Rex Specs goggles on your puppy with our step-by-step guide, including sizing tips, adjustment tricks, and getting your pup used to wearing them.

Puppies are curious explorers, and their eyes are just as vulnerable as an adult dog's to wind, debris, and UV rays. That's why many pet parents turn to Rex Specs goggles for protection. But fitting goggles on a growing puppy can be tricky—they wiggle, grow fast, and have different head shapes than adult dogs. In this guide, we'll walk you through the process step by step, from choosing the right size to making the experience positive for your pup.

Whether you're planning hikes, beach trips, or just want to shield your puppy's eyes during car rides, proper fitting is key. Ill-fitting goggles can slip, chafe, or cause your puppy to resist wearing them. With a little patience and the right technique, you can ensure your puppy stays comfortable and protected.

Step 1: Measure Your Puppy's Head

Before ordering goggles, you need to know your puppy's head measurements. Use a flexible tape measure to find the circumference of the head at the widest point (just behind the ears and across the brow). Also measure the distance between the eyes and the length from the brow to the back of the skull. These numbers will help you compare with the sizing chart provided by Rex Specs.

Keep in mind that puppies grow quickly. If your puppy is between sizes, it's often better to choose the larger size to allow for growth, but ensure it's not so loose that it falls off. You can add padding or adjust straps for a snug fit in the meantime.

  • Measure twice to ensure accuracy, especially if your puppy is wiggly.
  • Use a soft tape measure and keep it snug but not tight.

Step 2: Choose the Right Size and Model

Rex Specs offers different goggle sizes, including the Small Wide Goggle, which is ideal for puppies and small breeds. The Small Wide Goggle features a wider field of vision, which can help puppies feel less restricted. Check the size chart on the product page and compare it with your puppy's measurements.

Small Wide Goggle
Small Wide Goggle

If your puppy is a breed with a flat face (brachycephalic), like a Pug or French Bulldog, you may need to consider the fit more carefully. The goggles are designed to fit a variety of head shapes, but individual variation exists. Reading reviews from owners of similar breeds can provide insight.

  • The Small Wide Goggle is a popular choice for puppies due to its secure fit and wide lens.

Step 3: Adjust the Straps for a Snug, Comfortable Fit

When you first put the goggles on your puppy, adjust the top strap (over the head) and the bottom strap (under the jaw) so that the goggles sit evenly on the face. The straps should be snug enough that the goggles don't slide around, but not so tight that they dig into the skin. You should be able to fit one finger between the strap and your puppy's head.

The lens should sit comfortably over the eyes without pressing on the brow or cheekbones. Make sure the goggles don't obstruct your puppy's vision—they should be able to see clearly through the lens. If the goggles shift during movement, tighten the straps slightly or add padding (like a soft cloth) inside the goggles to improve the fit.

  • Check the fit after a few minutes of wear; puppies may need time to adjust.

Step 4: Help Your Puppy Get Used to Wearing Goggles

Introduce the goggles gradually. Start by letting your puppy sniff and inspect them. Then, briefly place the goggles on your puppy's head for a few seconds while offering treats and praise. Gradually increase the duration over several days. This positive reinforcement helps your puppy associate the goggles with good things.

Practice wearing the goggles indoors first, then move to short outdoor sessions. This helps your puppy get used to the sensation and the reduced peripheral vision. Always supervise your puppy while wearing goggles to ensure they don't get caught on anything or cause discomfort.

  • Use high-value treats like small pieces of chicken or cheese to reward calm behavior.

Step 5: Regular Checks and Adjustments as Your Puppy Grows

Puppies grow rapidly, so check the fit of the goggles every few weeks. You may need to loosen the straps as your puppy's head grows. If the goggles start to feel too tight, it's time to size up. The Small Wide Goggle is designed for small heads, but once your puppy outgrows it, you'll need to move to a larger size.

Also, inspect the goggles regularly for wear and tear. The straps and lens should be in good condition to ensure safety. If the lens gets scratched, consider replacing it with Original Replacement Lenses to maintain clear vision.

Original Replacement Lenses
Original Replacement Lenses
  • Set a reminder to check the fit monthly during your puppy's first year.

Fitting Rex Specs goggles on your puppy doesn't have to be a struggle. By measuring correctly, choosing the right size, adjusting straps, and using positive training, you can keep your puppy's eyes protected while making the experience enjoyable. Remember to re-check the fit as your puppy grows, and soon your furry friend will be ready for any adventure with confidence.

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