Built for the dog who backs out of things – There's a second strap behind the ribcage, so the harness can't simply slide forward over the shoulders the way a two-strap vest can.
Neck and chest both adjust – Two sliders, so a deep-chested dog and a narrow-necked one can wear the same size without either of them being loose somewhere.
The numbers – S: neck 28–36 cm, chest 32–40 cm, 5.5–11 lb. M: 36–46 / 36–50 cm, 11–16.5 lb. L: 44–54 / 46–63 cm, 16.5–31 lb. XL: 46–64 / 54–71 cm, 31–55 lb.
Between sizes, go up – The maker says the same, and notes their figures come off worn harnesses so they can run about 2 cm under the flat measurement.
Padded chest plate and a top handle – The padding sits where the pressure lands; the handle sits where you'd actually grab.
Four colors – Purple, red, mint and black, with reflective stitching on all four.