He is a solid dog.
There are lot of variations in body type among Whippets; some are very lean and ribby and you can see every spinous process - others are more muscular. My two were the more muscular types, the male was longer and leaner than the female - but they both had defined glutes and hamstrings and big shoulder muscles. My female takes after her mother, who though she (the mother) competed at Westminster, always had to watch her weight and tended to be (ahem) plump. If I don’t run Callie every day and feed her sparingly, she tends to gain weight pretty easily.
I have a friend with a Whippet who is more of an ectomorph, she makes my Callie look like a bodybuilder, LOL! Very petite, narrow head, tucked up and all ribs visible – though she is in good health. For showing, the breed standard wants them on the lean side, you are supposed to be able to easily see the top three spinous processes or they are considered to be “too heavy.”
Most laypeople think Whippets (and most Sighthounds) are way too skinny, and often comment on it, accusing their owners of starving them. :rolleyes: A truly chubby Sighthound is NOT a healthy dog.
Their body type is definitely different from most dogs you see, but often people compare everything to a Lab, so…
(And a majority of Labs I see living in suburbia are significantly overweight! Oy.)