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Ancol Extreme Dog Harness

The Ancol Extreme harness in small, 51–67cm girth, with a grab handle

Colour

Size

From £33.79

Not sure of the size? Check the measuring guide

· tracked · UK mainland estimate · 14-day promise

UK delivery £2.99 · free over £39

Secure checkout by Stripe · Card, Apple Pay & Klarna

Small in this range still means a substantial harness

Ancol build the Extreme for large and adventurous dogs and do not lighten it for the smaller sizes, so on a very small or fine-boned dog it may be more harness than they want to wear. Measure the girth — around the chest, behind the front legs — because 51 to 67cm is the only figure that decides fit, and Ancol give us no neck measurement or weight range. If your dog is under the bottom of that range, this is not the harness for them.

Secure checkout

Tracked delivery

Easy returns

Why we chose it

The handle is worth more on a small dog than a big one, because you can actually lift them. Same heavy-duty construction as the larger sizes, which is unusual — most ranges thin out as they get smaller.

— Matt, founder

Size guide & how to measure

Harnesses are sized by the chest (girth) — the measurement around the widest part of the ribcage, just behind the front legs.

How to measure

Stand your pet up squarely.
Wrap a soft tape around the widest part of the chest, just behind the front legs.
Keep two fingers under the tape so the fit is snug, not tight.
If your pet is between sizes, choose the larger one.

Size	Typical chest / girth	Rough guide
XS	28–40 cm	Toy breeds, kittens, very small dogs
S	38–53 cm	Small dogs (e.g. Dachshund, Yorkie)
M	50–68 cm	Medium dogs (e.g. Cocker Spaniel, Beagle)
L	65–85 cm	Large dogs (e.g. Labrador, Boxer)
XL	82–105 cm	Giant breeds (e.g. German Shepherd, Rottweiler)

Ranges are approximate and vary by style. Always check this product’s Specifications for its exact measurements.

Specifications

Material: nylon
Brand: Ancol
Material: nylon

Full description

This is the smallest Extreme, at 51 to 67cm girth, and it is the size where the grab handle changes from useful to genuinely valuable. A small dog is a dog you can pick up — over a stile, out of the way of a bike, off the edge of a canal path — and a harness with a handle turns that into one movement instead of a scramble.

The build is the same as the largest in the range: heavy-duty nylon straps, a sports buckle, a rust-resistant nickel-coated D-ring, reinforced nylon stitching, fully padded with a breathable mesh lining. There is a padded grab handle across the back, tool holders and an accessory clip, and reflective stitching and piping as standard. The chest pad is removable for more shoulder movement, and the utility pocket takes a Tractive tracker.

Girth 51–67cm — the small size
Padded grab handle across the back
Fully padded, breathable mesh lining
Sports buckle and rust-resistant nickel-coated D-ring
Reflective stitching and piping as standard
Removable chest pad; utility pocket fits a Tractive tracker

Small in this range still means a substantial harness. Ancol build the Extreme for large and adventurous dogs and do not lighten it for the smaller sizes, so on a very small or fine-boned dog it may be more harness than they want to wear. Measure the girth — around the chest, behind the front legs — because 51 to 67cm is the only figure that decides fit, and Ancol give us no neck measurement or weight range. If your dog is under the bottom of that range, this is not the harness for them.

Who it's for: small but sturdy dogs walked somewhere a handle matters — terriers, French bulldogs, small working crossbreeds.

Delivery

Tracked UK delivery — your estimated arrival date is shown above and updates automatically. Standard delivery £2.99, and free on orders over £39. Full details on our delivery information page. Delivery information

Returns

14 days to change your mind, no interrogation. Items need to be unused (sensory products unopened, for hygiene). Full details on our delivery & returns page.

Payment

Secure checkout by Stripe — cards, Apple Pay, Link and Klarna. We never see or store your card details.

Common questions

What size dog does it fit?

Girth 51 to 67cm, measured around the chest behind the front legs.

Is it lighter than the bigger sizes?

No. Ancol use the same heavy-duty components throughout the Extreme range.

Is it too much harness for a small dog?

Possibly, for a very fine-boned one. It is built for adventurous dogs and is not a lightweight harness.

Does it have reflectives?

Yes, stitching and piping as standard on every size.

Which options can I choose from?

Black / 51-67cm, Red / 51-67cm, Black / 68-86cm, Red / 68-86cm, Black / 71-96cm, Red / 71-96cm, Black / 87-120cm. Pick one above before adding to your basket.

How long does delivery take?

Your estimated delivery date is shown above and updates automatically. UK orders are sent tracked — standard delivery is £2.99, and free on orders over £39.

How do I track my order?

As soon as your order is dispatched we email you a tracking link, so you can follow it all the way to your door.

How do I choose the right size?

Use the size guide above to measure your pet, then pick the size whose range your measurement falls within. If you’re between sizes, size up. Still unsure? Email us before you order.

What is it made from?

nylon. Full specifications are listed above.

What if I need to return my order?

You have 14 days from delivery to change your mind. Just email us with your order number and we’ll send the return steps the same working day — see our delivery & returns page for details.

Why buy from Giddy Pets?

Carefully selected by pet ownersEvery product is chosen and quality-checked by people who actually live with dogs, cats and small pets.
Tracked delivery on every orderUK delivery with tracking as standard — and it’s free when you spend over £39.
UK customer supportReal, UK-based humans read every email — usually Matt, the founder. No bots, no ticket numbers.
Easy returns14 days to change your mind, no interrogation. If it’s not right, we’ll make it right.