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4.6
Rated 4.6 out of 5 stars
107 Reviews

Undercoat™ Dog Water Jacket

water-friendly insulation

Color

Selected: Aurora Teal

Choose size

Sizing Chart

Measurement is around the widest part of the rib cage. This style is Formfitting, meaning that it is snug and conforms to the body’s contours. In between sizes? Choose the larger size.

Product sizing chart table
Girth Size
13 - 17 in (33 - 43 cm) XXS
17 - 22 in (43 - 56 cm) XS
22 - 27 in (56 - 69 cm) S
27 - 32 in (69 - 81 cm) M
32 - 36 in (81 - 91 cm) L
36 - 42 in (91 - 107 cm) XL
Product Dimensions Figure
Product dimensions table
Length (A) Neck (B) Size
11 in (27.5 cm) 10.5 - 11.75 in (26.5 - 30 cm) XXS
14 in (35.5 cm) 13 - 15 in (33 - 38 cm) XS
18.5 in (47 cm) 15 - 17.5 in (38 - 44.5 cm) S
20.75 in (53 cm) 18 - 20.75 in (45.5 - 52.5 cm) M
22.75 in (58 cm) 22 - 24.5 in (56 - 62 cm) L
26 in (66 cm) 26 - 28.5 in (66 - 72.5 cm) XL
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Trail Tested Promise
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When it comes to exploring in and around water, the Undercoat™ Water Jacket offers warmth for dogs who can't resist making a splash in the colder, shoulder seasons or who are prone to getting cold when wet. It's an amphibious jacket that thrives in wet environments, using a formfitting laminated neoprene for insulation that stretches and moves with dogs as they romp and swim. Super-soft, articulated stretch StormSleeves™ are engineered to seal in warmth while maintaining freedom of movement.

Can be worn standalone as an insulative piece, or layered under the Float Coat™ Life Jacket if buoyancy is also needed.

WATER-FRIENDLY WARMTH

Laminated neoprene body is flexible and provides insulation in wet environments.

STRETCH SLEEVES

Articulated stretch StormSleeve™ seals in warmth and allows for natural swimming motion.

DRAINAGE HOLES

Small drain holes on belly panel allow water to exit.

Additional Features

  • Formfitting with a zippered closure and sleeves for core heat retention

  • Laminated neoprene body is flexible and provides insulation in wet environments

  • Small drain holes on belly panel allow water to exit

  • Articulated stretch StormSleeve™ seals in warmth and allows for natural swimming motion

  • Reflective trim for visibility in low-light conditions and light loop for attaching The Beacon™️

  • Materials

    • Body: 1mm neoprene laminated with stretch spandex fabric
    • Zipper: YKK Vislon Zipper
    • Reflective trim
    • Zipper flap: 200 denier polyester
    • StormSleeve™: Double-layer stretch spandex
    • Made in Vietnam

  • Care

    • Secure fasteners
    • Rinse with cold water after each use
    • Hang to dry
    • Do not bleach, iron, or dry clean

Undercoat™ Videos

  • About: The Undercoat™ Water Jacket

    Learn more about the Undercoat™ Water Jacket from Alli and Firnspiegel.

Find The Right Size For Your Dog

Measurement is around the widest part of the rib cage.

Sizing Chart & Technical Specs

Measurement is around the widest part of the rib cage. In between sizes? Choose the larger size.

FIT GUIDE

While each style of Ruffwear apparel is designed for its intended use, this guide generalizes our fits in three ways. The Undercoat is Formfitting with a zippered closure and sleeves for core heat retention

Fit guide table
Formfitting Regular Fit Relaxed Fit
Snug and conforms to the body’s contours. Can be worn standalone or layered under Relaxed apparel. Tailored with a bit of wiggle room. Can be worn standalone or layered under Relaxed apparel. A loose fit that drapes the body. Can be worn standalone or over Regular or Formfitting apparel. Works well for hard-to-fit dog shapes and sizes.
Product sizing chart table
Girth Size
13 - 17 in (33 - 43 cm) XXS
17 - 22 in (43 - 56 cm) XS
22 - 27 in (56 - 69 cm) S
27 - 32 in (69 - 81 cm) M
32 - 36 in (81 - 91 cm) L
36 - 42 in (91 - 107 cm) XL
Product Dimensions Figure
Product dimensions table
Length (A) Neck (B) Size
11 in (27.5 cm) 10.5 - 11.75 in (26.5 - 30 cm) XXS
14 in (35.5 cm) 13 - 15 in (33 - 38 cm) XS
18.5 in (47 cm) 15 - 17.5 in (38 - 44.5 cm) S
20.75 in (53 cm) 18 - 20.75 in (45.5 - 52.5 cm) M
22.75 in (58 cm) 22 - 24.5 in (56 - 62 cm) L
26 in (66 cm) 26 - 28.5 in (66 - 72.5 cm) XL
Find The Right Size For Your Dog chart
Select Size

17-22 in (43-56 cm)

Ratings & Reviews

4.6
Rated 4.6 out of 5 stars
Based on 107 reviews
Total 5 star reviews: 77 Total 4 star reviews: 21 Total 3 star reviews: 8 Total 2 star reviews: 1 Total 1 star reviews: 0
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107 reviews
  • Katie O.
    Verified Buyer
    Reviewing
    Undercoat™ Dog Water Jacket Medium / Aurora Teal (421)
    I recommend this product
    Rated 5 out of 5 stars
    12 seconds ago
    Warm on the River

    This will be absolutely perfect for our snake river trip this year! The water does get cold even when you’re in the sun and this little wet suit will be great insulation under Tuesday’s float coat!

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  • Trudy F.
    Verified Buyer
    Reviewing
    Undercoat™ Dog Water Jacket Medium / Campfire Orange (815)
    I recommend this product
    Rated 5 out of 5 stars
    2 days ago
    Undercoat and float coat

    We love this product! Got both the undercoat and the float coat! The float coat allows for normal movement while swimming and the undercoat works great for Lake Superior swimming with the water so cold!

    Love these products! We feel they run a bit large and needed to exchange one set for Gracie. Winnie’s fit well. Thanks ruffwear!

    Was this helpful?
  • Courtney B.
    Verified Buyer
    Reviewing
    Undercoat™ Dog Water Jacket Medium / Aurora Teal (421)
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    Lab Mix Approvred

    Keeps our dog warmer so our lab mix can swim in the intracoastal all year long.

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  • Reid T.
    Verified Buyer
    Reviewing
    Undercoat™ Dog Water Jacket Medium / Campfire Orange (815)
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Better than Hunting Vest

    I got this for my German Shorthaired Pointer (Rio) for rafting the cold rivers we run in Colorado. He usually wears a neoprene hunting style vest under his PFD that just covers his core. I like that this jacket has a little more coverage over his rump and arms for a little extra warmth and the color helps him be more visible as he romps the banks. I paired it with a Confluence life jacket from Ruffwear and love the combo. Still haven't floated with it yet, but the fit accommodates his large chest well and the build seems high quality like everything else we've ever ordered from Ruffwear.

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  • Kim H.
    Verified Buyer
    Reviewing
    Undercoat™ Dog Water Jacket Small / Aurora Teal (421)
    I recommend this product
    Rated 5 out of 5 stars
    3 weeks ago
    Helps my chilly collie!

    My border collie has more energy than sense and loves to swim all year round. This jacket keeps him from shaking a little longer when the water temps are down! I I think his new little sister is going to need one now, too.

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