First, relax: you can't get this wrong. Before your kit ships, we email you to confirm your dog's exact measurements — and if a size still isn't right, exchanges are free. Measure once, then let us worry about it.
Sizes run S–XL across the Red Light Therapy Wrap and the Stretch & Mobility System. Order the full kit and every piece arrives sized to your dog.
How to measure
Grab a soft measuring tape — or a piece of string and a ruler — and have your dog stand naturally, weight on all four paws. Treats help. Three numbers:
- Chest girth. Wrap the tape around the widest part of the ribcage, just behind the front legs. Snug to the coat, never tight.
- Neck. Around the base of the neck, right where a collar naturally sits.
- Foreleg. Around the middle of the front leg, halfway between elbow and paw. This sizes the stretch cuffs.
Using string? Mark where it meets, lay it flat, and measure against the ruler.
The size chart
| Size | Chest girth | Typical weight | Example breeds |
|---|---|---|---|
| S | 18–24 in | 15–30 lb | Beagle, French Bulldog |
| M | 24–30 in | 30–55 lb | Border Collie, Australian Shepherd |
| L | 30–36 in | 55–85 lb | Labrador, German Shepherd, Rottweiler |
| XL | 36–42 in | 85–120 lb | Great Dane, Mastiff |
Chest girth is the deciding number. Weight and breed are reference points — dogs, like athletes, come in every build.
Between sizes?
The athlete's rule: size up for the Wrap (coverage matters) and size down for the cuffs (snug beats loose). Or skip the guesswork — email us your three numbers and we'll make the call together.
Fit notes, piece by piece
Red Light Therapy Wrap. Sized by chest girth. A good fit covers the hip or shoulder comfortably and sits flush without sliding; the two straps hold it steady — secure, never pinching.
Stretch & Mobility System cuffs. Sized by foreleg. Fasten the velcro, then run the two-finger check: two fingers should slide under the cuff easily. Snugger than a collar, gentler than a grip.
Mini Percussive Massager & Joint Recovery Chews. One size fits all good dogs. Nothing to measure.
Our fit guarantee
Before your kit ships, you'll get an email from our team confirming your dog's measurements — a real check by real people, not a formality. If the fit still isn't perfect when it arrives, we'll exchange it free. No fees, no hassle, no fine print.
Preorder kits ship in 8–12 weeks, and you can cancel anytime before shipping for a full refund. Recovery gear only works when it fits — so we make sure it fits.
Stuck mid-measure? Email don@ariesapollo.com — a photo of your dog helps, and honestly, we love getting those.