Wow, they are indeed a pair of beautiful dogs. They look like they are great physical condition also. Are they Tervurens?
They are in incredible shape- very lean for k9 sports. My boy races flyball, and had his first successful race in March after training for a year. He'll be competing again in May and June. He also does agility and disc. Hoping to get him into dock diving this summer.
My girl just started training for flyball, but her drive was non-existent when I got her in November, so we're working on that. It is night and day, though, how far she's come since becoming my dog. She's a former show dog, which is why she gets the princess nickname.
Close on the breed. They're Belgian Sheepdogs- Groenendael.
This is a still image of the boy running flyball:
To add: both just had their yearly check up. The boy is 42lbs, the girl is 41lbs. They are usually between 55-70lbs. Both of mine, though, are more petite. The jock looks twice as big as the princess because he has his mature coat.