The Sassy Woof Dog Adjustable Harness - MLB™ x Peanuts™ Miami Marlins™ is blue with red trim, features Snoopy playing baseball with bats, gloves, and balls, and includes official MLB and Peanuts logos plus a patented badge for authenticity.
The Sassy Woof Dog Adjustable Harness - MLB™ x Peanuts™ Miami Marlins™ is a red mesh harness with blue straps, cartoon dog and Miami graphics, black adjustable buckles, and a PATENTED badge beside it.
A vibrant size chart for the Dog Adjustable Harness - MLB™ x Peanuts™ Atlanta Braves™, by Sassy Woof, features a pink dog illustration. Sizes XXS–XXL list neck and chest measurements in inches/cm. Contact info appears at the bottom.
Illustration of the Sassy Woof Dog Adjustable Harness - Hot Dawg, featuring soft, breathable mesh, neck and back adjustments, sturdy metal D-rings for leash attachment, and an easy-release plastic buckle.
The Dog Adjustable Harness - MLB™ x Peanuts™ Miami Marlins™ by Sassy Woof features Snoopy with bats and gloves on blue fabric with red trim, “Miami Marlins” and “PEANUTS” logos, plus the official MLB logo in the corner.
A happy Australian Shepherd sports a Sassy Woof Dog Leash - MLB™ x Peanuts™ Miami Marlins™ while sitting on an orange clay baseball field near a chain-link fence, with green trees and field equipment in the background.
A brown dachshund wears the Sassy Woof Dog Adjustable Harness - MLB™ x Peanuts™ Miami Marlins™, standing on a metal bench outdoors with a chain-link fence and blurred trees in the background.
A fluffy white dog wears a Sassy Woof Dog Adjustable Harness - MLB™ x Peanuts™ Miami Marlins™ and blue leash, sitting on a stone ledge outside on a rainy day with palm trees and a building in the background.
A dog wearing the Sassy Woof Dog Two Piece Bundle - MLB™ x Peanuts™ Miami Marlins™ sits on an orange dirt baseball field next to a baseball, with a chain-link fence and green trees in the background.

Dog Adjustable Harness - MLB™ x Peanuts™ Miami Marlins™

Sale price$ 34.99 USD
Size:XSmall
Neck(N): Measure where a collar naturally sits. Chest(C): Measure widest part of dog's chest. Size XXS – N: 8–11 in (20–27 cm), C: 10–14 in (25–35 cm). Size XS – N: 10–16 in (26–40 cm), C: 14–19 in (35–47 cm). Size S – N: 14–19 in (36–47 cm), C: 16–21 in (41–54 cm). Size M – N: 17–20 in (43–51 cm), C: 18–25 in (46–62 cm). Size L – N: 18.5–22 in (47–57 cm), C: 22–33 in (57–83 cm). Size XL – N: 20–25 in (50–63 cm), C: 24–35 in (60–89 cm). Size XXL – N: 22–29 in (56–74 cm), C: 25 - 37 inches (64–94 cm). Neck(N): Measure where a collar naturally sits. Chest(C): Measure widest part of dog's chest. Size XXS – N: 8–11 in (20–27 cm), C: 10–14 in (25–35 cm). Size XS – N: 10–16 in (26–40 cm), C: 14–19 in (35–47 cm). Size S – N: 14–19 in (36–47 cm), C: 16–21 in (41–54 cm). Size M – N: 17–20 in (43–51 cm), C: 18–25 in (46–62 cm). Size L – N: 18.5–22 in (47–57 cm), C: 22–33 in (57–83 cm). Size XL – N: 20–25 in (50–63 cm), C: 24–35 in (60–89 cm). Size XXL – N: 22–29 in (56–74 cm), C: 25 - 37 inches (64–94 cm).
Quantity:
The Sassy Woof Dog Adjustable Harness – MLB x Peanuts™ Chicago White Sox™ features a playful player silhouette and PEANUTS logo, ideal for White Sox fans wanting a fun design for their dog’s harness.
Hey batter batter, hey batter batter, swing! Join Sassy Woof in celebrating America's past time with our MLB™ x Peanuts™ Miami Marlins™ collection! Featuring Snoopy up to bat, in the field, and your favorite baseball team's logos!

Major League Baseball trademarks and copyrights are used with permission of Major League Baseball. Visit MLB.com.
© 2026 Peanuts Worldwide LLC

* Only available to U.S. and Canada customers 

Description

Our original patented design features:

  • Two D-rings:
  • One D-ring on back for leash attachment
  • Another versatile front D-ring that can be used for "no pull" or tags 
  • Custom printed neoprene fabric with breathable mesh
  • Adjusts at the neck and chest for the perfect fit
  • Sizes from XSmall to XLarge
  • Pair this harness with our matching collar, leash, and bandana!
Puppy Growth Pawtection Plan (U.S. ONLY):
This harness qualifies for our Puppy Growth Pawtection Plan (PGPP), which will let you replace this harness for a larger one within 9 months because of natural growth! The PGPP must be added at the time of purchase. Find pricing information and other details here

Sizing & Care Instructions

Colorful size chart for Sassy Woof's Dog Adjustable Harness - Chillin with my Gnomies. Features a pink dog, neck & chest measurements (in/cm), sizes XXS–XXL, and options like puppy and no pull harnesses.

  • Spot clean with soap and water. Hang to dry.

 

How-To Videos

 

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Two blue adjustable Sassy Woof dog collars from the MLB™ x Peanuts™ Miami Marlins™ collection, with red trim, Snoopy and Woodstock designs, MLB and Peanuts logos on black patches, plastic buckles, and metal D-rings.The Sassy Woof Dog Collar - MLB™ x Peanuts™ Miami Marlins™ features a blue band with cartoon dog designs, a red adjustable strap, black plastic buckle labeled Sassy Woof, and a black metal ring for leash attachment.
Dog Collar - MLB™ x Peanuts™ Miami Marlins™
Sale price$ 19.99 USD
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The Sassy Woof Dog Leash - MLB™ x Peanuts™ Miami Marlins™ features Snoopy in a red cap, team logos, and a black metal clasp. It matches perfectly with Peanuts Snoopy dog accessories.The Sassy Woof Dog Leash - MLB™ x Peanuts™ Miami Marlins™ features cartoon dog and bone prints, a black metal clasp, red inner lining, and a Sassy Woof patch—ideal to match with Peanuts Snoopy dog gear. The leash is coiled on a white background.
Dog Leash - MLB™ x Peanuts™ Miami Marlins™
Sale price$ 22.99 USD
new
The Sassy Woof Dog Bandana - MLB™ x Peanuts™ Miami Marlins™ features Snoopy baseball art, baseballs, bats, gloves, Marlins logos, and "Miami" and "Marlins" text in various fonts.The Sassy Woof Dog Bandana - MLB™ x Peanuts™ Miami Marlins™ is a blue bandana with Snoopy baseball motifs, baseballs, gloves, and bats, plus a black label featuring the Peanuts™ and MLB™ logos.
Dog Bandana - MLB™ x Peanuts™ Miami Marlins™
Sale price$ 16.99 USD
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The Sassy Woof Dog Two Piece Bundle - MLB™ x Peanuts™ Miami Marlins™ is a blue and red Snoopy dog harness and leash set featuring Marlins icons, Peanuts characters, baseball motifs, and a PATENTED badge.The Sassy Woof Dog Two Piece Bundle - MLB™ x Peanuts™ Miami Marlins™ features a blue harness with red trim, Peanuts characters like Snoopy and Woodstock, baseball illustrations, plus PEANUTS and MLB logo patches on the front.
Dog Two Piece Bundle - MLB™ x Peanuts™ Miami Marlins™
Sale price$ 54.99 USD
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new
Show your team spirit with the Sassy Woof Harness Three Piece Bundle - MLB™ x Peanuts™ Miami Marlins™ featuring Snoopy, bats, and baseballs. This adjustable set includes a harness, collar, and leash—perfect for fans and growing pups!.The Sassy Woof Harness Three Piece Bundle - MLB™ x Peanuts™ Miami Marlins™ is a blue adjustable dog harness with red trim, featuring Snoopy playing baseball and official MLB Peanuts Miami Marlins logos with a patented badge icon.
Harness Three Piece Bundle - MLB™ x Peanuts™ Miami Marlins™
Sale price$ 65.99 USD

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For every purchase, Sassy Woof donates to a pup in need. We support other organizations through the giving of our time and donations.