# Mediterranean Warmth-Inspired Swimwear Collections Nii HAi Debuts Capsule 023 Part 2 By Kalin Ned | Published 2026-07-27 | Fashion Source: Trend Hunter, https://www.trendhunter.com/trends/nii-hai References: [niihai](https://niihai.com/en-us/collections/capsule-023-part-2) Nii HAi, the London-based brand founded by Rosie Williams in 2019, has released Capsule 023 Part 2. This drop introduces two hero bikini sets that exemplify the label's signature balance of [Mediterranean warmth and urban sensibility](https://www.trendhunter.com/trends/escape-into-the-blue) through playful yet sophisticated design elements. The Aux Bikini in white features a triangle-cut top and tie-side thong brief. It is distinguished by an unexpected wired earphone tie detailing that adds a whimsical, tech-inspired twist to classic swimwear silhouettes. Complementing this is the Siren Bikini in petrol, which incorporates swirl rhinestone detailing throughout its [triangle top and tie-side brief](https://www.trendhunter.com/trends/new-swim-collection). Contrast pink provides a pop of color that enhances the garment's visual appeal. Both pieces reflect the brand's [capsule-based approach](https://www.trendhunter.com/trends/denim-tears-summer-2026-act-iii-pt-2), which prioritizes versatility and contrast. This creates an elevated essential that can be layered, reversed, or worn in multiple ways to suit different occasions and styling preferences. Image Credit: Nii HAi ## Trend Insights (Trend Hunter) - Score: 7.8/10 - Popularity: 76% | Activity: 73% | Freshness: 85% - Audience gender: 30% men, 70% women - Primary generations: Millennial, Gen X - Top markets: North America ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Fashion](https://www.trendhunter.com/fashion) > [Hip Fashion](https://www.trendhunter.com/hipfashion) ## Key Themes ### Why This Trend Is Growing - **Tech-inflected Swimwear:** Playful hardware details and digital-culture references are reshaping classic beachwear into statement pieces with crossover appeal for fashion-forward consumers. - **Modular Resort Dressing:** Versatile bikinis that can be layered, reversed, or restyled reflect growing demand for adaptable garments suited to travel, nightlife, and social content creation. - **Mediterranean Urban Aesthetics:** Warm coastal cues blended with city-ready styling create space for brands to position swimwear as both vacation essentials and everyday fashion extensions. ### Industries Being Reshaped - **Swimwear:** Design-led embellishments, unconventional ties, and multi-wear silhouettes are expanding the category beyond function into collectible seasonal capsules. - **Fashion Retail:** Capsule drops centered on distinctive hero pieces support scarcity-driven merchandising and help retailers connect with consumers seeking fresh visual identity. - **Travel Apparel:** Destination-inspired pieces with styling flexibility align with consumers who pack fewer items while expecting garments to transition across beach, resort, and evening settings. ## Related on Trend Hunter - [Nautical-Inspired Sporty Swimwear Capsules](https://www.trendhunter.com/trends/sporty-swim-collection.md) - [French Resort Swimwear](https://www.trendhunter.com/trends/la-piscine-prive.md) - [Wellness Focused Swimwear](https://www.trendhunter.com/trends/bathing-belle.md) - [Streetwear Label Expansions](https://www.trendhunter.com/trends/ksubi-unveils-kswim.md) - [Summer Resort Collections](https://www.trendhunter.com/trends/hlas-summer-2026.md) - [Tropical Resort Swim Collections](https://www.trendhunter.com/trends/zuri-bahari.md) - [Island-Inspired Summer Wear](https://www.trendhunter.com/trends/sel-de-mer.md) - [Comfort-Forward Swimsuit Capsules](https://www.trendhunter.com/trends/onewith-x-claire-buckley.md) - [Style Muse-Informed Chic Swimwear](https://www.trendhunter.com/trends/the-salty-blonde.md)