Harness help?

So I,m new to flyball my eldest dog Cynder went for her first lesson yesterday yay!
But I noticed that all the other dog wear harness kinda felt out of place our club prefers dogs to wear them too Cynder wears harness sometimes on walks but it need replaced so I being looking around local areas that sell them the fleece style as they look comfy and Cynder can pull hard don't want her to hurt herself but at the same time I'm woundering if there any point she not hard to catch and you want them revd up and pulling to go
So to harness or not to harness err confused
So I found two local ones
(like there custom sized both dogs are odd shape,all the colours,price is expensive but if it better I,m will to pay'might stress Stella needs muzzled when measure I hate to stress her if the harness turns out rubbish)
http://www.fleecedogharnesses.co.uk/sho ... k-by-edog/
And
The dog games harness at our local vet (cheaper,quick trip down vet,less stress on Stella as she won't need measured she shy due to a bad start in life)
https://www.dog-games-shop.co.uk/harnes ... rness.html
I also intend to take our younger dog Stella staffyxwhippet flyball too she need one she wiggly
But I noticed that all the other dog wear harness kinda felt out of place our club prefers dogs to wear them too Cynder wears harness sometimes on walks but it need replaced so I being looking around local areas that sell them the fleece style as they look comfy and Cynder can pull hard don't want her to hurt herself but at the same time I'm woundering if there any point she not hard to catch and you want them revd up and pulling to go
So to harness or not to harness err confused
So I found two local ones
(like there custom sized both dogs are odd shape,all the colours,price is expensive but if it better I,m will to pay'might stress Stella needs muzzled when measure I hate to stress her if the harness turns out rubbish)
http://www.fleecedogharnesses.co.uk/sho ... k-by-edog/
And
The dog games harness at our local vet (cheaper,quick trip down vet,less stress on Stella as she won't need measured she shy due to a bad start in life)
https://www.dog-games-shop.co.uk/harnes ... rness.html
I also intend to take our younger dog Stella staffyxwhippet flyball too she need one she wiggly
