UnderDOG Pet Life Jackets
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Product Overview

Not for sale online in California.

MTI’s UnderDOG pet life jackets are ergonomically designed for your swimming canines.

With 90% of its effective buoyancy under the chest and neck, the UnderDOG supports a natural swimming angle for your water-loving pet. By allowing your dog’s hindquarters to float lower in the water, this life jacket improves swimming efficiency and keeps your dog’s head higher. Adjustable back, neck, and chest straps ensure a snug and custom-like fit for any size pooch.

Additional features include a mesh top for cooling, two straps on back for easy retrieval out of the water, reflective trim for increased visibility, Cordura® construction for a durable exterior and a D-ring for attaching a leash.

Key Features

  • 90% of buoyancy under chest and neck for a natural swimming angle
  • D-ring for attaching leash
  • Reflective trim for increased visibility
  • Two integrated grab handle for easy out-of-water retrieval
  • Mesh top for cooling


  • Intended Use: Boating, recreational, watersports
  • Flotation Material: Closed cell foam
  • Closure: Three buckles


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