The straps are made of nylon. The nylon is not stiff at all. It is very soft and easily conforms to the curves of the body. There is no chaffing in use at all and quite comfortable, no matter which position you find yourself in.
The slide buckles are the same, hard, plastic buckles you would find on a backpack. The nylon straps loop through them and, once you have them at the desired size, keep the straps in place with no movement at all. There is a small buckle on each of the back, butt straps and only one on the hip strap. The single buckle on the hip strap allows this harness to accommodate a very wide variety of sizes.
There is an O-ring included. The box lists the O-ring as being Silicone, but it is a little too stretchy to be 100%. My guess would be more along the lines of TPR Silicone. It stretches big enough to fit around my wrist with ease, so you can certainly use any size dildo from a 1.25 diameter and up.
The panel is black, shinny vinyl on the front with 4 snaps that hold the very stretchy O-ring in place. The back of the panel is made of soft, thick, Neoprene.
The simplicity of the design works well for this harness. Getting in an out of it is a breeze because of how easy it is to slide the buckle back and forth.
Because the O-ring included is so stretchy, it can accommodate a very wide variety of toys. As long as your dildo has a good base, it will stay in place. If you do not like the O-ring, it can easily be switched out for something firmer.
The box boasts that it can fit up to a 44 inch hip size, and it can. It has plenty of room to play with. Because of the single buckle, it can easily adjust to much smaller hip sizes as well. It is very comfortable to wear for long periods of time.
If you find there is too much strap left over, you can easily trim it with a pair of sharp scissors and then take a lighter to the ends to seal them and prevent fraying.
The slide buckles would make it a little bulky to wear under tight fitting clothing. If you wear your clothes on the looser end of the spectrum, you could get away with wearing this under them.
This harness is very comfortable and works well. The soft nylon straps feel great on the skin, whether you are walking around in it or having a marathon session in the bedroom. Once you get it to your desired fit, there is no need to readjust.
The dildo sits at a perfect, naturally low position and great angle. Also, switching out your dildo is easy with the snaps - simply undo 2 and switch. If the base of your dildo is on the smaller side, it could pop out with vigorous play. In that case I would suggest getting a firmer, not so stretchy O-ring.
It is not recommended that you submerge this harness or wash it in the machine. Suggested cleaning is to spot clean with toy cleaner or mild soap and allow to air dry. This means there is no way to get it deep down clean, so sharing is a no-go. It is best to keep this for personal use with a fluid bonded partner.
This one comes in a fairly large box compared to what is inside. The harness is folded up into a small, plastic envelope style bag and just floats in a box that is almost too big. There are no instructions in the box. Keeping the box for storage would be bulky. Toss it in the recycle bin and just toss the harness into your toy box.