FREE shipping on all orders $74.95 and over.

Enable Accessibility

Search suggestions:

Search Best Sellers

  • Obsidian Black (001) Obsidian Black (001)
    Polar Trex™ Winter Dog Boots colors

    Polar Trex™ Winter Dog Boots

    winter traction & insulation

    4.3
    Rated 4.3 out of 5 stars
    334 Reviews
    Click to scroll to reviews
    Original price $54.95 USD
  • Blaze Orange (850) Front Range Harness in Basalt Gray (042) Front Range Harness in River Rock Green (355) Blue Pool (410) Red Canyon (625) Moonlight Mountains (964) Spring Mountains (968) Coastal Mountains (973) Blaze Orange (850)
    Front Range® Dog Harness colors

    Front Range® Dog Harness

    padded, everyday adventure

    4.7
    Rated 4.7 out of 5 stars
    3,941 Reviews
    Click to scroll to reviews
    Original price $54.95 USD
  • Strata (962) Blue Jay (437) Galaxy (954) Strata (962)
    Climate Changer™ Dog Fleece colors

    Climate Changer™ Dog Fleece

    technical, breathable fleece

    4.7
    Rated 4.7 out of 5 stars
    441 Reviews
    Click to scroll to reviews
    Original price $59.95 USD
  • Fireweed Pink (627) Blue Moon (460) Fired Brick (611) Campfire Orange (815) Obsidian Black (001) River Rock Green (355) Fireweed Pink (627)
    Quinzee™ Dog Puffer Jacket colors

    Quinzee™ Dog Puffer Jacket

    packable & insulated

    4.8
    Rated 4.8 out of 5 stars
    343 Reviews
    Click to scroll to reviews
    From $74.95 USD - $89.95 USD $74.95 USD - $89.95 USD
Aurora Teal
Aurora Teal
Aurora Teal
Aurora Teal
Aurora Teal
Aurora Teal
Aurora Teal
Aurora Teal
50% off
4.6
Rated 4.6 out of 5 stars
97 Reviews
Click to scroll to 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
Shipping box icon.

Free Returns

 Leaf icon.

Better With Each Design

 Trail Tested Promise icon

Trail Tested Promise
Right Arrow

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 97 reviews
Total 5 star reviews: 69 Total 4 star reviews: 20 Total 3 star reviews: 7 Total 2 star reviews: 1 Total 1 star reviews: 0
Slide 1 selected
Write a Review (Opens in a new window)
97 reviews
  • Kelly B.
    Verified Buyer
    Reviewing
    Undercoat™ Dog Water Jacket Small / Campfire Orange (815)
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    Love Love Love!

    I love the design, it fits very well. We have yet to test it in the water but as soon as the lakes unfreeze we are going to test it out!

    (Float Coat with Undercoat)

    Was this helpful?
  • John I.
    Verified Buyer
    Reviewing
    Undercoat™ Dog Water Jacket Medium / Campfire Orange (815)
    I recommend this product
    Rated 5 out of 5 stars
    3 weeks ago
    GIA 'S REVIEW

    SHE LET ME PUT IT ON HER WITH NO PROBLEMS, I TOOK HER OUTSIDE AND SHE RAN AOUND WITH IT ON AND DIDN'T MISS A BEAT. WEATHER HERE IS TO COLD FOR HUNTING . I HOPE I'LL BE ABLE TO FEILD TESTED IN THE NEXT WEEK OR TWO. MY SON IN DENVER HAS ONE FOR HIS DOG AND WORKS GREAT. I'M SURE IT WILL BE THE SAME GIA.

    Was this helpful?
  • Susanna
    Verified Buyer
    Reviewing
    Undercoat™ Dog Water Jacket Medium / Aurora Teal (421)
    I recommend this product
    Rated 5 out of 5 stars
    4 weeks ago
    Perfect for cold water

    My lab will NOT stay out of the water in the winter, so I’m grateful to have found this jacket. It fits snugly but not tightly, and her fur stays almost completely dry. She has no problem swimming in deep water—no drag or movement restriction. The snap helps make zipping easy with no snags.

    Was this helpful?
  • Christopher T.
    Verified Buyer
    Reviewing
    Undercoat™ Dog Water Jacket XSmall / Campfire Orange (815)
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Snug and stylish

    Size XS Fits my 23 lb 22 in chest dog like a wetsuit would on a human. Super fun and cute, wears neatly under the life jacket

    Was this helpful?
  • LI-JU W.
    Verified Buyer
    Reviewing
    Undercoat™ Dog Water Jacket Large / Aurora Teal (421)
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Must have one

    My dog ​​loves swimming, whether it's winter or summer. This jacket helps a lot in winter.

    Was this helpful?
Show More