Clawgs V2 is a good option for people who cannot afford V3, who dislike Velcro, or who will struggle to repeatedly attach Velcro at correct lengths.
For dogs who will be laying around in Clawgs for long durations, we strongly recommend Clawgs V3 because Clawgs V2’s buckle is more likely to poke dogs' undersides when laying in certain positions, particularly the Clawgs on back paws. If you intend to only use Clawgs while dogs are active, V2 works great.
Clawgs V3 is only available in sizes 5-12. If you need sizes 1-4, Clawgs V2 is currently the only option. However, it's possible to slightly overtighten size 5 Clawgs V3's heel straps to make them fit on dogs thought to need size 4 Clawgs (as long as dogs don't have low hanging dew claws). We do not have a size 1-4 new Clawgs version estimated release date.