There are two primary types of supination insoles:

• Insoles that provide a deep heel cup to stabilize the heel and ankle combined with a firm arch support to give the foot a firm base that will guide the foot in a natural pronation when walking.
  
• "Wedge"-style inserts that provide extra support for the outside of the foot to help turn the foot inwards when walking in order to prevent walking on the outsides of the feet.
  

Supination arch supports provide a firm base for the heel and the arch of the foot. In doing so, they provide stability for the ankle to help prevent the "rolling outward" of the ankle while walking, while the arch support helps guide the foot towards normal pronation with each step you take.

Wedge inserts prop up the outer edge of the foot, helping to turn your foot and ankles slightly inwards when walking in order to alleviate the "rolling outwards" of the foot that you experience with supination.

Deciding on an arch support for supination or a wedge insert for supination is mostly a matter of preference. Wedge inserts tend to be less expensive and work more immediately with less initial discomfort (and can be worn with your current shoe insoles), but we have found that most people find more long-term comfort and stability from using arch supports for supination.

You'll find the most immediate results with wedge-style inserts, as the wedge design more immediately corrects symptoms of supination by elevating the outer edge of the foot when standing and walking.

Arch supports for supination may take several days for your foot to adjust to. For most people, having firm support under the foot and adjusting to the feel of the insole guiding the foot into pronating normally is uncomfortable initially, but wearing the insoles for an hour or two for the first several days helps your feet adjust.

Supination insoles can help to develop your foot muscles and "train" your feet to pronate normally over time. After several months of wearing supination insoles, you can try wearing shoes without these insoles to see how your pronation has changed since you started wearing them. Ensuring that you have proper pronation and maintain this pronation is key to ensuring that you don't develop any future pain or discomfort from supination.

Wedge inserts do less to "train" the foot since they primarily just add support under the outsides of the feet to help roll the foot inwards when walking. This means that your foot won't develop the same muscles as quickly that will lead to normal pronation without the use of the inserts.

The first step is choosing between a supination arch support insole or a supination wedge insert. While wedge inserts can be a cost-effective way of eliminating the symptoms of supination, supination insoles are a better long-term solution to supination since they help to develop the foot muscles necessary to training your foot to pronate normally.

If selecting a supination arch support, you'll want to ensure that the insole features a deep heel cup and a firm arch support. These features are necessary to ensuring that your ankles are properly stabilized, that your foot arch is fully supported, and that your foot will be guided to pronating normally when you walk.

Beyond this, you can choose between the volume of cushioning the insole has, whether or not the insole has metatarsal support, or whether the insole has shock-absorbing padding if performing activities like running or sports. For most people, choosing an insole with moderate cushioning is sufficient for choosing a comfortable supination insole.