From the author's README on Thunderstore

Maiô do Flamengo

Swimsuit do Mengão para o Skate (ReSkate).

Instalação

Coloque a pasta do mod na sua pasta Mods e ative pelo launcher do ReSkate.

Como usar

No jogo: customização de personagem → Tops → selecione o maiô Flamengo.

Créditos

Criado por rafaelfritas

Install Flamengo

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

Open ReSkateLauncher.exe and go to MODS.
Search for Flamengo 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.