Shoes
Shoes is one of the usable equipment type Sonic the Hedgehog and Shadow the Hedgehog can wear in the games. The list and its description is separated accordingly.
Sonic's Shoes
The Light Speed Shoes(ライトスピードシューズ Raito Supīdo Shūzu?) are a specialized pair of sneakers only wearable by Sonic the Hedgehog. It is an upgrade from the Power Sneakers(his signature footwear) enabling Sonic to travel along a trail of rings at light speed on the ground and in midair called, Light Speed Dash. The first appearance of the Light Speed Shoes shares a resemblance to his signature shoes both in color and in design, but adorned with circular attachments at the heels in its Sonic Adventure debut. In Sonic Adventure 2, the attachments are to the heels of Sonic's Soap Shoes, the Scorcher type variant of the Power Sneakers. In Sonic Unleashed, its color is gold and looks exactly like his default footwear. According to its description in the game, it is made from the same material as Gold Rings. These shoes can also be seen in Sonic Shuffle and Sonic Generations.
Custom Shoes are upgradable footwear exclusive to Sonic 06. Its design has no distinguishable difference from the Power Sneakers, but its color can be altered with Gems. Sonic is also able to use the Light Speed Dash wearing these shoes, but it is with the Light Chip(an invisible attachment) instead having to wear Light Speed Shoes. With the Antigravity upgrade equipped to the Custom Shoes, Sonic can perform the Slide attack; a variant of the Skid Attack he uses in the Sonic Advance games, but with greater range and speed.
Air Boost Shoes(エアブーストシューズ Eabūsutoshūzu?) are lightweight footwear exclusive to Sonic Unleashed. The only unique aspect about its appearance is it contains small white wings on its sides. Like its name states, Sonic is able to Boost swiftly while in midair when wearing these shoes.
The Stomping Shoes(エアブーストシューズ Eabūsutoshūzu?) are another wearable upgrade of Sonic's normal footwear. In Sonic Unleashed, they are black, heavy steel shoes with spikes on its soles. When Sonic wears these shoes, he is able to do the powerful Stomp to destroy enemies and obstacles. In the 3DS version of Sonic Generations, Tails modifies these shoes to be lighter and also looks exactly like Power Sneakers.
The Wall Jump Shoes(三角跳びシューズ Sankaku tobi shūzu?, lit. Triangle Jump Shoes) are another pair of sneakers resembling Sonic's Power Sneakers. But equipped with coils on the soles. Also strongly relating to its name, Sonic is able to Wall Jump and scale walls close together when wearing these shoes.
Shadow's Shoes
Air Shoes(エアーシューズ Eāshūzu?) are a pair of attachments to the heels Shadow's Hover Shoes. Once equipped, they allow Shadow to perform the Light Speed Dash and travel along trails of rings. They are the equivalent to Sonic's Light Speed Shoes.
Hover Shoes are the signature pair of shoes Shadow wears on his feet. This footwear was created by Gerald Robotnik and its design has remained usually consistent since Sonic Adventure 2.
Exclusive to Sonic 06, Shadow also has the equivalent of the Light Chip called, Air Chip.