AVS stands for Auto Ventshade.  Their Ventvisor line is the best selling vent visor kit sold in North America.  All of their products are made in the USA and come with a limited lifetime warranty.  AVS rain guards are molded to fit the window perfectly, are a smoked black color similar to limo tint, and have strong 3M automotive grade tape pre-applied to the visor for an easy installation.  AVS vent visors are made of a higher grade material than most rain guards that holds it color and is just the right thickness to be strong yet flexible for a perfect fit.  In our experience AVS makes the best fitting and looking rain guards that money can buy.

 IN-CHANNEL vs OUTSIDE MOUNT

Outside mount visors stick directly to the door just above the window and follow the contour of the window down to the mirror.  Depending on the vehicle they may tuck under the mirror, stick to the outside of the mirror, or end mid way down the mirror.  In-Channel mount visors mount inside the window channel with the window and have the exact shape of the window channel.

 WHY TWO STYLES

On a few vehicles because of the mirror or door trim it is not possible to mount visors to the outside so AVS will only offer the in-channel style.  Visa versa on some vehicles there is just not enough room for visors inside the channel so they only offer the outside mount style.  For everything else they offer both styles so the buyer can chose.

 WHICH ONE DO WE RECOMMEND

In-channel visors are harder to install and if they are not positioned perfectly may catch on the window as it rolls up.  In channel visors kits that are not installed correctly usually end up cracked or broken which is not covered under warranty.   Because of this we always recommend the outside mount style when available.  They are much easier to install and always fit perfect.  If installed properly the tape will never come unstuck but in the event they were not properly installed new tape can be applied and the visor reinstalled without having purchasing a new set.