Thundershirt's patented design applies a gentle, constant pressure that has a dramatic calming effect on most dogs if they are anxious, fearful or overexcited. Anxiety experts believe that pressure has a calming effect on the nervous system and may release calming hormones like endorphins. Using pressure to relieve anxiety in people and animals has been a common practice for years

Features & Benefits
  • Over 80% effective
  • No training required
  • Veterinarian recommended
 
Size Guide
XXSmall for dogs less than 7lbs (3.5kg) 
XSmall for dogs 8-14lbs (3.5kg and 6.5kg)
Small for dogs 15-25lbs (6.5kg and 11.5kg)
Medium for dogs 26-40lbs (11.5kg and 18.5kg)
Large for dogs 41-64lbs (18.5kg and 29.5kg)
XLarge for dogs 65-110lbs (29.5kg and 50kg)