# Recycled Tennis String Apparel Tennis Apparel Brand LET Has Launched Its Core V.0 Shirt Collection By Adam Harrie | Published 2026-07-23 | Business Source: Trend Hunter, https://www.trendhunter.com/trends/tennis-apparel-brand-let References: [let.tennis](https://let.tennis/)  Newly founded [tennis apparel brand](https://www.trendhunter.com/trends/feel-the-heat1) LET launched its debut 'LET Core V.0 Shirt' collection, created by former Division I collegiate tennis players who repurpose used tennis strings into performance apparel through a [closed-loop recycling process](https://www.trendhunter.com/trends/allbirds-remix). The initial release includes three colorways, with LET collecting polyester strings from stringers, clubs and tournaments to feed directly back into production. The brand sells through its website and a network of 'Closed Loop Partner' locations that collect strings for recycling while also serving as designated wholesale retailers. This model connects the product directly to the tennis community and gives players, clubs and industry partners an active role in supporting the brand's [circular supply chain](https://www.trendhunter.com/trends/the-natura-collection). LET shows how athlete-founded brands can build stronger connections between product and sport by making circularity feel native to tennis culture rather than positioning sustainability as a separate, add-on initiative. Image Credit: LET ## Trend Insights (Trend Hunter) - Score: 7.7/10 - Popularity: 76% | Activity: 68% | Freshness: 86% - Audience gender: 50% men, 50% women - Primary generations: Millennial, Gen X - Top markets: North America, South America, Europe, Asia ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Business](https://www.trendhunter.com/business) > [New Ventures](https://www.trendhunter.com/newventures) ## Key Themes ### Why This Trend Is Growing - **Sport-native Circularity:** Sustainability models embedded directly into sport-specific rituals create room for brands to turn waste streams into authentic product stories and recurring community participation. - **Athlete-founded Performance Brands:** Former competitive athletes are using lived category expertise to develop apparel concepts that blend technical credibility, niche identity and purpose-led differentiation. - **Closed-loop Retail Networks:** Retail locations that double as material collection points introduce new value for clubs, specialty shops and event partners within circular supply chains. ### Industries Being Reshaped - **Tennis Apparel:** Performance clothing tied to tennis-specific recycled materials offers a distinct path for category brands to separate from generic sustainable activewear. - **Sporting Goods Recycling:** Specialized recovery systems for overlooked equipment waste such as strings, grips and balls suggest scalable infrastructure opportunities across amateur and professional sports. - **Athletic Retail:** Community-based wholesale partners that participate in collection and resale can reshape retail into a more interactive hub for sustainability, loyalty and local engagement. ## Related on Trend Hunter - [Sustainable Back-to-School Capsules](https://www.trendhunter.com/trends/sweet-threads.md) - [Tennis Tournament Capsule Collections](https://www.trendhunter.com/trends/lululemon-indian-wells-apparel.md) - [Sustainable Performance Apparel](https://www.trendhunter.com/trends/craft-sportswear.md) - [Technical Athletic Apparel](https://www.trendhunter.com/trends/solotex-mesh-performance.md) - [Pickleball-Inspired Apparel](https://www.trendhunter.com/trends/le-pickle-club.md) - [Collaborative Stylish Tennis Collections](https://www.trendhunter.com/trends/quiet-please-collection.md) - [3D Printed Tennis Balls](https://www.trendhunter.com/trends/point-tennis.md) - [Tennis-Core Lifestyle Collaborations](https://www.trendhunter.com/trends/naomi-osaka-x-etsy.md) - [High-Fashion-Inspired Athletic Wear](https://www.trendhunter.com/trends/veronica-beard-and-head.md)