Please measure in cm around the base of your dogs neck, then around the widest part of their chest and finally along their back (nape to tail). 
Please add the your dogs exact measurements at the checkout to ensure we send you the correct size.
If you are unsure of how to take your dogs measurements, don't see your dogs size below or want some advice on sizing please send us an email - info@occam.london

One - Neck 25  Chest 42 - 43 cm Length 30 - 33 cm Tiny Female Iggy 
Two - Neck 26  Chest 43 - 45 cm Length 33 - 36 cm  Small Iggy 
Three Neck 27  Chest 45 - 47 cm Length 36 - 38 cm Medium Iggy
Four Neck 28  Chest 47 - 49 cm Length 38 - 41 cm Big Iggy
Five Neck 29  Chest 49 - 52 cm Length 41 - 43 cm Small Whippet - Iggy cross
Six Neck 30 Chest 52 - 55 cm Length 43 - 46 cm Female Whippet
Seven Neck 33  Chest 58 - 61 cm Length 46 - 49 cm Male Whippet
Eight Neck 35  Chest 61 - 64 cm Length 49 - 52 cm / Big Whippet
 
Please note these are approximate measurements.
Our sizes currently range from Italian Greyhound to Whippet but we plan to accommodate for Greyhounds in the near future.