The Lupine Basic Solids Step-In Harness is a wrap-around harness the dog steps into, closed by a single buckle over the shoulders. The wrap-around design helps keep pressure off the throat. Straps adjust at the front, the back and the sternum.

This is the 3/4 inch wide harness. It is offered in two girth ranges, 15"–21" and 20"–30", each in a range of plain colours; the table below gives the code for every combination.

In use, the leash attaches to both D-rings. Lupine say a harness should never be left on an unattended pet and is not intended for full-time use, and they note that while step-in harnesses are easy to put on, some dogs can escape them — for a dog that pulls hard they suggest a Roman-style harness instead.

It is woven nylon webbing with welded steel hardware, made by Lupine in Conway, New Hampshire. Lupine operate their own “Even if Chewed” guarantee on their products; the cover and its exclusions are the manufacturer's and are set out at lupinepet.com/guarantee.