Since 2022, Netherlands-based tannery Ecco Leather, supplier to top luxury labels and parent company Ecco Group’s namesake shoe brand, has brought in casts of creatives to design for its collaborative project aimed at raising awareness for the material’s potential, At.Kollektive. For its fifth season, the project will get a new name — Ecco.Kollektive — and include work from British menswear designer Craig Green, Christa Bösch and…