Thundershirt Sport for Dogs - Platinum

by Thundershirt
Starting From: $58.99 Our Price: $58.99
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  • Applies soft, gentle pressure to relieve anxiety
  • Has a remarkable calming effect on most dogs
  • 100% Polyester - soft, breathable, washable fabric
  • Safe, effective, and drug-free
  • Easy to use
  • Reflective logo
  • 100% Satisfaction Guarantee

Thundershirts Sport for Dogs wraps around your dog to provide a gentle hugging feeling to calm them down. With their patented design, the constant pressure that the shirt creates has a dramatic effect on most dogs when they are overexcited, scared, or anxious. According to ThunderWorks, in a survey completed by over two thousand customers, over 80% of dogs and cats showed significant improvement in their symptoms when using the Thundershirt.

So how does it work? Experts believe that the pressure that the Thundershirt creates has a calming effect on the nervous system, possibly by releasing endorphins (a calming hormone). This is why using pressure to relieve anxiety in people and animals has been a frequent practice for many years. Examples include parents swaddling infants, veterinarians using squeeze chutes when vaccinating cattle, and thousands of people with autism using pressure to relieve persistent anxiety.

Use Thundershirt Sport for:

Fear of thunder, separation anxiety, reactivity, barking problems, car or travel anxiety, general fearfulness, any excitability, leash pulling, any noise anxiety, crate anxiety, and more.

Size Guide

Size Chest Girth Weight
XX-Small 22.9 - 33.0 cm | 9 - 13" Less than or equal to 3.2 kg | 7 lbs
X-Small 33.0 - 43.2 cm | 13 - 17" 3.6 - 6.3 kg | 8 - 14 lbs
Small 43.2 - 53.3 cm | 17 - 21" 6.8 - 11.3 kg | 15 - 25 lbs
Medium 53.3 - 63.5 cm | 21 - 25" 11.8 - 18.1 kg | 26 - 40 lbs
Large 63.5 - 76.2 cm | 25 - 30" 18.6 - 29.0 kg | 41 - 64 lbs
X-Large 76.2 - 93.9 cm | 30 - 37"  29.5 - 49.9 kg | 65 - 110 lbs
XX-Large 93.9 - 127.0 cm | 37 - 50" over 49.9 kg | 110 lbs

How to Measure Your Dog



  1. Neck: Measure the circumference of the base, leaving enough space to fit two fingers comfortably.
  2. Lower Neck: Measure the circumference of the area above the shoulder blades towards the top of the chest, leaving enough space to fit two fingers comfortably.
  3. Chest Girth: Measure the circumference of the widest part of the chest behind the front legs.
  4. Length: Measure the length of your dog's back from the top of their shoulders to the base of their tail.
  5. Height: Measure the distance from the floor to the top of your dog's shoulder blades. Your dog needs to be standing on all four legs.
  6. Paw Width: Measure the widest part of the paw. You'll get a better measurement if your pup is standing.
  7. Paw Length: Measure the distance between the "heel" and the longest toe nail. You'll get a better measurement if your pup is standing.
  8. Muzzle Length: Measure the nose length from the tip to the crook where you want the muzzle to sit comfortably below the eyes.
  9. Muzzle Width: Measure the muzzle's circumference at the widest part, leaving space for two fingers to ensure a comfortable fit.
  10. Weight: Step on a scale while holding the dog, then subtract your weight from the total. A dog scale is conveniently located at all our locations.

Get more tips for finding the perfect fit for your dog's adventure gear in How to Measure Your Dog.

Instructions for Use

Thundershirt Instructions

Step One: Place the ThunderShirt Sport on your dog's back and wrap the short flap under the torso.

Step Two: Wrap the long flap under the torso and secure with fasteners onto the short flap. Make a comfortable, but snug, fit. You should be able to easily slide your fingers between the ThunderShirt Sport and your dog's torso.

Step Three: Wrap the top flap down onto the long flap and secure with fasteners. Adjust to improve the snug fit and keep shirt securely in place.

Step Four: Wrap the neck straps around the front of the dog and secure with fasteners. You should be able to slide your fingers under the neck straps and should not feel restricting around your dog's neck.


Thundershirt Sports are designed to be safe for your dog to wear for extended periods of time when appropriate. When properly sized and fitted with a nice comfortable snug, your dogs should feel very calm and comfortable. If your dog is wearing the Thundershirt Sport for more than a couple hours at a time, we recommend removing the shirt periodically (at least initially) to check for any signs of irritation. Though it is rare for irritation to occur, it is better to be safe.