From the author's README on Thunderstore

A fan-made footwear cosmetic for skate., created using ReSkate Studio.

Features

Black high-top shoes with textured uppers
Spike detailing on the toes and sides
Red outsoles

Installation

Install the completed mod package through a compatible ReSkate launcher, or follow the install instructions for your ReSkate version. Disable old versions of the same cosmetic to avoid conflicts.

Requirements

skate. on PC
Compatible ReSkate / ReSkate Launcher

Notes

This is a fan-made mod, not an official product or collaboration. Game updates may affect compatibility.

Credits

Mod, cosmetic design and in-game screenshots: mod author
ReSkate Studio: respective developers

Install Red Bottoms

You need ReSkate and your own copy of skate. on Steam.

Open ReSkateLauncher.exe and go to MODS.
Search for Red Bottoms and click install. The launcher also installs anything it depends on.
Press PLAY. In game, the MODS tab of the ReSkate menu (Insert) turns it on and off.

Or install it by hand: download the .zip and drop it on the launcher window, or unzip it into its own folder in Mods\ beside Skate.exe.

Maps show up in the ReSkate menu's level list. To join a server running a custom map, you need the same map installed. If the game won't load after installing, see known issues.

skatemods doesn't host or review this mod. The download comes straight from Thunderstore. Only install mods you trust, because scripts can run code.