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Olive (65lbs) in a Large harness and Standard leash
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Active Flex Dog Harness - With Handle (M/L)
Active Flex Dog Harness - With Handle (M/L)
Active Flex Dog Harness - With Handle (M/L), Azure
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Top Handle
Easy Clean
Waterproof
A waterproof, easy-to-clean harness built for every adventure. Featuring a dual-clip design, five-point adjustability, and a sturdy top handle for extra control when you need it most.

Details
Details
Our Active Flex™ harnesses are made for daily walks, weekend hikes, and everything in between—with durable, easy-clean webbing that stays soft and comfortable all day.
- Waterproof and quick-drying
- Saltwater-safe
- Resists dirt and odors
- Built-in traffic handle at the top
- Durable Flex™ webbing is stronger than leather or nylon, and resists fraying
- Soft and flexible, never stiff
- Easily wipes clean after muddy adventures
Fit and Sizing
Fit and Sizing
Please measure your dog to ensure a perfect fit. See our size guide for measuring tips and more details.
X-Small
- Fits necks 9-13"
- Fits chest 14-18"
- 5/8" wide
- Weighs 4.8oz
Small
- Fits necks 11-18"
- Fits chest 18-25"
- 5/8" wide
- Weighs 5.6oz
Medium
- Fits necks 15-23"
- Fits chest 21-27"
- 1" wide
- Weighs 12oz
Large
- Fits necks 18-29"
- Fits chest 27-39"
- 1" wide
- Weighs 13.1oz
Materials and Care
Materials and Care
- PVC coated exterior, polyester webbing interior
- Brass and zinc alloy hardware, plastic buckles
- Wipe with a soft cloth and mild soapy water
- Avoid harsh chemicals or bleach
Shipping Info
Shipping Info
- Orders without personalized items ship in 1-3 days
- Personalized items require an additional 3 days. Please note: expedited shipping does not reduce production time for personalized products
- Orders ship once all items are ready (no split shipments)
Returns and Exchanges
Returns and Exchanges
We accept returns within 30 days of the original ship date for items in brand new condition, with original tags, and free of pet hair and odor. Refunds will be issued to your original form of payment (excluding original shipping fees).
We want the perfect fit for your pup. That's why we offer a Right Size Guarantee, with one free exchange for a different size for non-personalized apparel and accessories.
Please note:
- Personalized items are final sale unless we made a mistake
- Customers are responsible for return shipping unless the item is damaged or incorrect
- Returns are not accepted after 60 days
View our Return Policy for more details

Dog Bed Fill Options
Pet Tag Keeper
Switch out ID tags and charms with ease. The Pet Tag Keeper™ attaches to the D-ring of your pet's collar and makes it easy to move ID tags between collars or harnesses, or swap out charms seasonally.Pet Tag Keeper
Switch out ID tags and charms with ease. The Pet Tag Keeper™ attaches to the D-ring of your pet's collar and makes it easy to move ID tags between collars or harnesses, or swap out charms seasonally.Made for Life on the Go
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Front and back leash attachment points offer added versatility for every walk.
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Grab the built-in top handle for extra control and added safety.
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Easy to clean, with a waterproof finish that wipes down in seconds.
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Engineered to withstand up to 470 lbs of force for even the strongest pullers.
Word on the Street
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“We love this harness! It’s secure, lightweight, and gives my dog plenty of freedom to move comfortably.”
Madison | Golden Retriever (45lbs)
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“The hands-free design is so convenient, but the standout feature is one I didn't know I needed: the handle.”
Mariah | Goldendoodle (80lbs)
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“Having front and back D-rings, plus a safety handle, is great for both off-leash adventures and busy city walks.”
Michelle | Border Collie Mix (50lbs)
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SAVE 10%
Build Your Own Set
FROM $27 -
Bundle + Save
NEWActive Everyday Harness Walk Set
$119$107 -
Bundle + Save
NEWActive Adventure Harness Walk Set
$164$148
Harness Every Adventure
Flexible, secure, and easy to clean, our Active Flex Harnesses are built to keep up with every adventure.
Mix, Match & Move
Skip the guesswork. Choose from our pre-built Everyday Walk Set, Adventure Walk Set, or Build Your Own Set for a complete, ready-to-go walk system.
One-Year Happiness Guarantee
We stand by every product, so if there’s a defect in materials or craftsmanship within a year of purchase, we’ll make it right.
Reviews
- Amy H.Verified BuyerDog Weight 20-29 lbs3 days agoDog Weight 20-29 lbsReviewingActive Flex Dog Harness (XS/S), Fern SRated 4 out of 5 starsLove it, but material makes it hard to adjust
We adore the harness. Looking forward to taking it on the road. On initial fitting, found the rubber hard to adjust. He has a bigger poodle rib cage relative to his waist so it took some fiddling (20 lbs, size S)
Fit / Sizing AccuracyRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeWas this helpful? - Annie K.Verified ReviewerDog Weight 60-69 lbs4 days agoDog Weight 60-69 lbsReviewingActive Flex Dog Harness (XS/S), DahliaRated 3 out of 5 starsWanted to Love but Seeing Issues within One Week
Purchased the active flex harness and collar (as well as a new tag and bed). I had every intention to come back for more gear soon because I loved how everything looks and thought it would be a great fit for us. Unfortunately within just the first four days of use, I am seeing the gold finish wear off the D rings and and very quick staining of on the harness straps around all the hardware (that doesn’t come off even with thorough cleaning). Again, really wanted to be a repeat customer because I love the designs, but I hate that a 4 days of light wear are already showing. Totally expect signs of wear as time goes on but it’s just way too soon particularly for the price point :(
Fit / Sizing AccuracyRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeWas this helpful?TFThe Foggy Dog7 hours agoHi Annie,
Thank you so much for taking the time to share your feedback and photos. We're truly sorry to hear about the premature wear you've experienced with your Dahlia Active Flex Dog Harness and Collar, especially after only four days of light use.
We completely understand your disappointment. While some wear is expected over time with regular use, we certainly wouldn't want you to see noticeable deterioration of the gold finish or discoloration around the hardware so soon after receiving your items, particularly when you were excited about the quality and design.
We really appreciate you bringing both concerns to our attention. The wear on the D rings and the staining around the hardware are issues we'd like our Product Team to review more closely, and the photos you've shared are especially helpful.
We'd also love the opportunity to make this right! Please reach out to our Customer Experience Team at woof@thefoggydog.com. Our team will be happy to review the concerns with your harness and collar and determine the best resolution.
We're truly sorry that your first experience with our products has fallen short of your expectations, Annie. We appreciate the opportunity to address these concerns and hope we can restore your confidence in The Foggy Dog!
- Sandra H.Verified BuyerDog Weight 10-19 lbs1 week agoDog Weight 10-19 lbsReviewingActive Flex Dog Harness (XS/S), Alpine SRated 5 out of 5 starsHarness and lease
Hi. I purchased 2 harness and 2 leases for my Westie’s. I love the hands free lease especially, as it allows me to spend time looking and enjoying my surroundings while walking the dogs. I can’t wait to show my friends!
Thanks.
Sandra
Fit / Sizing AccuracyRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeWas this helpful? - Emily C.Verified ReviewerDog Weight 70-79 lbs1 week agoDog Weight 70-79 lbsReviewingActive Flex Dog Harness - With Handle (M/L), FernRated 5 out of 5 starsA Stylish and Functional Harness for Every Adventure
We’re obsessed with The Foggy Dog’s Adventure Harness Walkset! We love that it combines style and functionality, making every walk comfortable and effortless. The hands-free design is a game changer, whether we’re grabbing a coffee on a leisurely stroll or heading out for a beach adventure and some zoomies in the sand. It’s the perfect blend of practical and stylish, and a new favorite for all our everyday adventures!
Fit / Sizing AccuracyRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeWas this helpful? - Leiron B.Verified BuyerDog Weight 60-69 lbs2 weeks agoDog Weight 60-69 lbsReviewingActive Flex Dog Harness - With Handle (M/L), Azure L - With HandleRated 5 out of 5 starsDurable and cute
So far this harness has been great. It feels secure, is easily adjustable, and wipes clean without issue. The color is brighter than expected, but it’s a nice pop of color.
Fit / Sizing AccuracyRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeWas this helpful? - Jessica S.Verified BuyerDog Weight 10-19 lbs3 weeks agoDog Weight 10-19 lbsReviewingActive Flex Dog Harness (XS/S), Shell SRated 4 out of 5 starsGreat quality but requires overhead
Love the color, love the construction, love the quality, and love the two locations to attach a leash... my only wish is that it didn't require going over my dog's head so it could be put on her faster... she is SO excited when this comes out since that means it's time for an adventure!
Fit / Sizing AccuracyRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeWas this helpful?



