this one is the buckle one
Flower Power Comfort Wrap Harness - Collars, Leads & Tags - Dog - PetSmart
i have one of this for milu (different pattern) it works great inside or over clothes. it's adjustable, and also all you have to do is put your puppy's legs through the holes and clip the buckle.
this one is a harness vest
Blue Hawaiian Netted Harness - Harness Vests - Collars - Modern Tails - Designer dog clothes, apparel, collars, carriers, beds
i don't have this one, but just wanted to show you an example of it. it's usually velcro at the bottom, so it's also really easy to put on.
