We do our best to provide you with as much information as possible and hope you find our website information useful. Our size guide has a list of dog breeds and the typical sizes they use. You can also see if there is a dog similar to yours in our photo gallery and which size they are wearing. Every size is colour coded.

We also have details about deliveries and exchanges and returns.

Additional information is shown below and if you have any other questions about the Optivizor please feel free to contact us for assistance.

Video: Fitting Guide

We have a video on YouTube which shows how to fit an Optivizor. It shows how the straps are fastened, the visor angle adjustment and trimming of the visor length. If you need to trim the visor we recommend following the pre-scored lines using heavy scissors and taking care to avoid any slips. See YouTube

Chin Strap Extension

If you find that the chin strap on your Optivizor is a little bit too short for your dog please contact us and we can send you one of our chin strap extension kits, free of charge.

Fluffy Heads

Some dog breeds such as Bichon Frise and Dandie Dinmont are notable for their fluffy heads. To avoid fitting issues we recommend that you wet the hair when assessing the size requirements and again when trying on for the first time. When you are happy with the fit you can consider giving them a shorter cut until they have finished using their Optivizor.

Shaved Heads

Your vet may remove hair around a surgical site. Please consider adding a dressing or fabric tape to protect the bare skin from rubbing, especially if your dog has sensitive skin.

Doggie Paddle

If your dog likes to splash in puddles or go swimming they can keep their Optivizor on. It is probably best to run it under a tap and wipe clean afterwards but all parts of the Optivizor are water-resistant and it won’t do them any harm to have a bit of fun. (With thanks to Captain Jack for his swimming video).

UV Protection for all Optivizors

Our clear Optivizor range has been updated with a lightly tinted visor that provides UV protection. New product reference codes will end in UV.

Best wishes to Shadow

Sending our best wishes to Shadow for a speedy recovery. Shadow has been helping Dr Karan promote his new book. Watch on Instagram and Facebook

Voucher Codes

Voucher Codes are available to purchase one-off items from our clearance page.

If you use one it is specifically for the clearance item only. We do not use voucher codes for general discounts.

Delivery to Northern Ireland

Regulations for sending goods from Great Britain to Northern Ireland were changed when the Windsor Framework came into effect on 1 May 2025. For a business in Great Britain that sends parcels to a consumer in Northern Ireland there are no customs declarations, customs duty or presentation of goods to customs authorities if the parcel is moved by a carrier authorised under the UK Carrier Scheme such as Royal Mail. See www.gov.uk/guidance