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Based on the original Classic mold, the Good Feet® Diamond arch support is formed using a more flexible compound of materials with a twist: a stabilization structure on its underside that allows more side-to-side flexion than our other lifetime-warranty arch supports. The Diamond is named for this distinctive diamond-shaped “Stability Web” pattern you’ll find on the sole of the arch support.

Maintainer Flex


The diamond-shaped Stability Web pattern on the underside of the Diamond arch support empowers it to follow the side-to-side motions of the foot during gait. The Diamond arch support can gently accommodate the gait of flatter or more sensitive feet while still providing enough stability to help put the foot in the Ideal Foot position.

Ideal for:

(Boots, Shoes, Etc.)
Running & Contact Sports
Standing all day

What's in a Diamond?

Heel Platform

Stability Web

Metatarsal Rise

Metatarsal Rise

longitudinal arch support

Heel Cup

longitudinal arch support

Inner & Outer Longitudinal Arch Support

Stability Web

The underside of the Diamond features a pattern of connected “diamonds” called a Stability Web. This webbed diamond pattern is positioned under the forefoot of the support to provide stability during gait.

What does the stability web do and how can it help?

The Diamond arch support’s Stability Web pattern is engineered to provide support to the forefoot without making the Diamond arch support too rigid. Each diamond-shaped stabilizer flexes slightly with each step, creating a gentle ride during gait. As a more flexible support in the Exerciser family, the Diamond arch support is suitable for those with flatter, more sensitive feet.

Metatarsal Rise

The front end of the Diamond arch support features a prominent “bump” that resembles a miniature pitcher’s mound. This is called the metatarsal rise and it is particularly effective at taking pressure off the ball of the foot, the toes and the heel.

What does the metatarsal rise do and how can it help?

By properly supporting the metatarsal arch, the metatarsal rise lifts up the bones in the ball of the foot, effectively preventing them from hitting the ground too hard every time the foot pushes off for a step. This means that the metatarsal rise in the Diamond arch support can help relieve some pain caused by pressure in the ball of the foot and also distribute body weight away from corns, calluses, and other painful problem areas in the ball of the foot. The Diamond arch support’s metatarsal rise works in conjunction with its flexible support structure to gently support the front of the foot more leniently than the more aggressive realignment provided by firmer members of the Exerciser family.

As it takes pressure off the ball of the foot, the metatarsal rise in the Diamond arch support fans out the bones that form the metatarsal arch which is located at the front of the foot (typically referred to as the ball of the foot). At the same time, the toes are relieved of pressure. This can help prevent the toes from gripping the ground with each step, which could be a cause of hammertoes, calluses or corns.

While properly distributing pressure through the front end of the foot, the Diamond’s metatarsal rise also redistributes pressure through the whole bottom of the foot, effectively reducing strain on the plantar fascia ligament (a band of tissue that runs from the bottom of the heel to the ball of the foot). When the plantar fascia ligament is allowed to stretch under too much pressure, it can become inflamed, causing a condition called Plantar Fasciitis. Because the Diamond’s metatarsal rise is so effective at properly distributing body weight through the foot, it can greatly reduce strain on the plantar fascia ligament. The Diamond arch support, as part of an arch support system, has helped many Good Feet customers find relief from their Plantar Fasciitis pain.

Heel Cup

The heel cup is a cup-like indentation at the heel end of the Diamond arch support. It is designed to protect the fatty pad of the heel and to help absorb the “step shock” and joint impact that courses through the body each time the heel strikes the ground.

What does the heel cup do and how can it help?

Every step each foot takes begins when the heel makes contact with the ground, in what is called “heel strike.” When the heel strikes the ground, up to three times the body’s weight can be exerted on the bones and tissues of the heel. This puts the heel under tons of stress, especially if it is not properly supported. The Diamond’s heel cup is designed to help cushion and properly align the heel, thereby reducing the stress of each step.

A stable heel is one of the foundations of a stable body. If a heel is striking the ground at an angle, or rolling too much to one side during gait, it can cause imbalances throughout the entire foot, ankle, knees, and eventually through the entire body. By supporting the heel, the Diamond can help align each step, starting with heel strike.

While ensuring that each heel strike is balanced and cushioned, the Diamond arch support’s heel cup can reduce fatigue on the ankles, knees, hips, and back. A properly supported heel can properly distribute the weight of the body through the legs during gait, which means that the tendons of the ankles and knees won’t have to work extra hard to keep the body upright. As part of an arch support system, the Diamond’s heel cup can be the first step toward an ideally aligned skeleton.

Inner & Outer Longitudinal Arch Support

The Diamond also features support for the inner and outer arches of the feet. These are designed to stabilize the foot during gait, to help prevent it rolling inward or outward with each step.

What does inner and outer longitudinal arch support do and how does it help?

By supporting all four arches of the foot, the Barefoot arch support helps to properly distribute pressure through the entire foot, thereby preventing any one part of the foot from taking on too much pressure. This can help alleviate pain in areas of the foot that are strained.

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