Free delivery on orders over £70 pounds. Learn More.

Enable Accessibility

Search suggestions:

Best Sellers

  • New Colour
    Blaze Orange (850) Blaze Orange (850) Basalt Gray (042) River Rock Green (355) Blue Pool (410) Red Canyon (625) Moonlight Mountains (964) Spring Mountains (968) Coastal Mountains (973) Blaze Orange (850) Basalt Gray (042) River Rock Green (355) Blue Pool (410) Red Canyon (625) Moonlight Mountains (964) Spring Mountains (968) Coastal Mountains (973) Blaze Orange (850) Basalt Gray (042) River Rock Green (355) Blue Pool (410) Red Canyon (625) Moonlight Mountains (964) Spring Mountains (968) Coastal Mountains (973) Blaze Orange (850) Basalt Gray (042) River Rock Green (355) Blue Pool (410) Red Canyon (625) Moonlight Mountains (964) Spring Mountains (968) Coastal Mountains (973) Blaze Orange (850) Basalt Gray (042) River Rock Green (355) Blue Pool (410) Red Canyon (625) Moonlight Mountains (964) Spring Mountains (968) Coastal Mountains (973)
    Front Range® Dog Harness colors

    Front Range® Dog Harness

    padded, everyday adventure

    4.8
    Rated 4.8 out of 5 stars
    143 Reviews
    From £44.95 GBP - £54.95 GBP £44.95 GBP - £54.95 GBP
  • Lichen Green (315) Obsidian Black (001) Lichen Green (315) Red Sumac (607) Obsidian Black (001) Lichen Green (315) Red Sumac (607) Obsidian Black (001) Lichen Green (315) Red Sumac (607) Obsidian Black (001) Lichen Green (315) Red Sumac (607) Obsidian Black (001) Lichen Green (315) Red Sumac (607) Obsidian Black (001) Lichen Green (315) Red Sumac (607) Obsidian Black (001) Lichen Green (315) Red Sumac (607) Obsidian Black (001) Lichen Green (315) Red Sumac (607)
    Grip Trex™ Dog Boots colors

    Grip Trex™ Dog Boots

    all-terrain paw wear

    4.9
    Rated 4.9 out of 5 stars
    25 Reviews
    Original price £52.95 GBP
  • Earth Brown (210) Mineral Yellow (717) Earth Brown (210) Blue Dusk (407) Midnight Blue (433) Hibiscus Pink (647) Mineral Yellow (717) Earth Brown (210) Blue Dusk (407) Midnight Blue (433) Hibiscus Pink (647) Mineral Yellow (717) Earth Brown (210) Blue Dusk (407) Midnight Blue (433) Hibiscus Pink (647) Mineral Yellow (717) Earth Brown (210) Blue Dusk (407) Midnight Blue (433) Hibiscus Pink (647) Mineral Yellow (717) Earth Brown (210) Blue Dusk (407) Midnight Blue (433) Hibiscus Pink (647) Mineral Yellow (717) Earth Brown (210) Blue Dusk (407) Midnight Blue (433) Hibiscus Pink (647)
    Sun Shower™ Dog Raincoat colors

    Sun Shower™ Dog Raincoat

    waterproof, windproof

    5.0
    Rated 5.0 out of 5 stars
    41 Reviews
    From £47.96 GBP - £69.95 GBP £47.96 GBP - £69.95 GBP
  • Strata (962) Strata (962) Galaxy (954) Blue Jay (437) Cedar Green (302) Canyonlands Orange (820) Blossom (923) Glacier (935) Strata (962) Galaxy (954) Blue Jay (437) Cedar Green (302) Canyonlands Orange (820) Blossom (923) Glacier (935) Strata (962) Galaxy (954) Blue Jay (437) Cedar Green (302) Canyonlands Orange (820) Blossom (923) Glacier (935) Strata (962) Galaxy (954) Blue Jay (437) Cedar Green (302) Canyonlands Orange (820) Blossom (923) Glacier (935) Strata (962) Galaxy (954) Blue Jay (437) Cedar Green (302) Canyonlands Orange (820) Blossom (923) Glacier (935) Strata (962) Galaxy (954) Blue Jay (437) Cedar Green (302) Canyonlands Orange (820) Blossom (923) Glacier (935)
    Climate Changer™ Dog Fleece colors

    Climate Changer™ Dog Fleece

    technical, breathable fleece

    5.0
    Rated 5.0 out of 5 stars
    12 Reviews
    From £56.20 GBP - £74.95 GBP £56.20 GBP - £74.95 GBP
Aurora Teal
Aurora Teal
Aurora Teal
Aurora Teal
Aurora Teal
Aurora Teal
Aurora Teal
Aurora Teal
Campfire Orange
Campfire Orange
Campfire Orange
Campfire Orange
Campfire Orange
Campfire Orange
Campfire Orange
Campfire Orange
25% off
5.0
Rated 5.0 out of 5 stars
2 Reviews

Undercoat™ Dog Water Jacket

water-friendly insulation

Color

Selected: Campfire Orange

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 Delivery*

 Leaf icon.

Better With Each Design

 Trail Tested Promise icon

Trail Tested Promise
Right Arrow
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

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.
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
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

Coverage Style

Product Coverage Figure
Find The Right Size For Your Dog chart
Select Size

13-17 in (33-43 cm)

Ratings & Reviews

5.0
Rated 5.0 out of 5 stars
Based on 2 reviews
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
2 reviews
  • Patricia B.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    9 months ago
    Undercoat

    Lexie loves her jacket it keeps her dry and snug when she’s in and out of the water

    Was this helpful?
  • Paul A.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    10 months ago
    Dog water jacket

    Great fit and quality,Barney loves his new jacket.Paul

    Was this helpful?
Reviews LoadedReviews Added