The Short Version
Long denim skirts — particularly midi-length styles — are indeed identified as a 2026 trend by multiple credible fashion outlets including Refinery29, Who What Wear, and Women. However, the claim oversimplifies the picture. The two highest-authority, most current sources (Harper's BAZAAR and Who What Wear, both March 2026) highlight denim mini skirts as the dominant spring runway trend. "Long" also blurs the distinction between midi and maxi lengths, with midi being the more consistently forecast trend. Long denim skirts are trending, but they're one of several competing denim skirt silhouettes in 2026.