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Description & Size guide

The NewTrix Halter is an innovative and comfortable item of dog walking equipment designed ethically to make dog walking easier for everyone including the dog.

Created over a careful period of time and after full testing the NewTrix Halter is designed to act on a unique pull/push system which means its bespoke style will only tighten when the dog pulls. When it does tighten, the halter only does so at the back of the head. This is opposed to many halter types that twist the dog’s head and neck.

The NewTrix halter can be easily customised to your dog’s unique head and muzzle shape and comes in various sizes, just to be certain that your dog has one that fits perfectly. Whether you use it in the short term whilst teaching a new dog to walk nicely, or use it forever to keep a strong dog under control, this is a great tool for dog training and walking in general.

Unsuitable for dog’s with spine and neck problems who are usually best walked on a body harness. Care should also be taken when fitting the New Trix Halter in order to allow the dog to open his mouth for panting. 

Download the full instruction leaflet for the Newtrix head collar below.



Check out the Newtrix website for lots of tips on how to fit and adjust the Newtrix Headcollar and also look at our video tab above for further help.



SIZEDog Size
Mini 7-10 kg
Small 10-21 kg
Medium 21-34 kg
Large 34-50 kg
Mega 50-63 kg
Delivery & Returns


FREE STANDARD DELIVERY on orders over £49

Delivery is free via Royal Mail Tracked service and will take 3-5 working days* to arrive with you.

BASIC DELIVERY on orders under £25

Delivery is £3.35 via Royal Mail 48 service and will take 3-7 working days* to arrive with you.

STANDARD DELIVERY on orders up to £48.99

Delivery is £4.20 via Royal Mail Tracked 48 service and will take 3-5 working days* to arrive with you.


Delivery is £6.30 via Royal Mail Tracked 24 service and will take 1-3 working days* to arrive with you.

SPECIAL DELIVERY (Guaranteed Next Working Day)

Delivery is £8.99 via Royal Mail Special Delivery. This is a guaranteed next working day service and orders must be placed before 3pm. orders placed on a Friday will be delivered the following Monday. Orders placed after 3pm on Friday will be delivered the following Tuesday. This service may not be available in all location i.e. BFPO or Highlands & Islands.

*Delivery times are estimated from shipment and subject to stock availability. Our cut off time for orders is 3pm. Working Days are Monday to Friday and don't include UK public holidays.


At we operate a fair postage policy and we have no additional charges for deliveries to BFPO addresses or the Highlands & Islands.


Delivery to EU from £10.99 (Royal Mail Tracked And/Or Signed)
Free Delivery to EU on orders over £150

International Delivery (Outside EU):
International Delivery £11.99 (Royal Mail Tracked And/Or Signed)
Free International Delivery on orders over £200


We operate a 60 day returns policy at K9active. Items can be returned within 60 days of the shipment date.

For orders placed in the UK we provide free returns potage for exchange items. UK Only orders requesting a refund you can use our returns label, the cost of which £3.50 (Royal Mail Tracked return service) will be deducted from your refund. Alternatively you can use a courier of your choice.


Delivery for some products mainly Large items and Dog Beds will incur shipping charges in addition to our regular postage rates above. In most cases these products will be sent directly from the manufacturers warehouse on a next day courier. In all cases that there will be additional costs for a product to be shipped you will be advised on the product page and you can see the exact cost for your order in the cart using the shipping estimator.

For information about returns, please click here to view our Returns Policy.

NewTrix Head Collar Halter

Size Guide