Leather collarless blazers define a sharp evolution in modern tailoring, replacing traditional lapels with a clean, uninterrupted neckline and a structured, compact silhouette. Seen across Spring Summer 2026 collections from Loewe, Toteme, and Nour Hammour, this direction emphasizes precision and surface over softness. The leather construction introduces a polished, architectural edge that distinguishes it from classic wool versions while maintaining a refined, corporate-ready shape. This emerging tailoring category highlights the shift toward more assertive, streamlined blazers that balance authority with minimalism.