Theory Turtleneck Long Sleeve Top
Theory · Clothing & Accessories > Tops > Sweaters/Knits
Era / Decade
Modern 2010s-2020s (Modern black fabric neck label with white sans-serif font)
Material
Likely a Pima Cotton or Viscose-Spandex blend (Theory's signature Gansevoort or Apex fabrics). High-quality, thin, breathable knit with significant stretch.
Condition
Very Good. The fabric appears bright white without visible yellowing, though there are moderate wrinkles from storage. Neckline looks stable without sagging.
Demand Level
Strong. Basics from Theory sell consistently year-round, with a peak in Fall/Winter for layering.
Resale Value
Estimated Resale Value
$25.00 (Low) - $38.00 (Mid) - $55.00 (High)
Estimated Retail Value
$95.00 - $145.00
Comparable Sales
Recent Poshmark/eBay sales for Theory white turtlenecks range from $28 to $45 depending on specific material (silk/cashmere blends go higher than cotton).
Description
Sophisticated Theory long sleeve turtleneck top in a crisp optic white. This essential layering piece features a slim fit and a soft, lightweight jersey knit construction. Perfect for professional wear under a blazer or a minimalist standalone look.
Key Features
High brand recognition, high-quality fabric, classic staple piece (wardrobe essential), neutral color, and minimalist aesthetic.
Authenticity Indicators
Black woven label with centered 'Theory' logo in signature font. High confidence (High). Theory is rarely faked for basic knits.
Flaws to Note
Potential for faint deodorant marks under arms or foundation stains around the inner turtleneck (need to check). Extreme wrinkling requires steaming.
Selling Guide
Where to Sell
Poshmark, The RealReal (consignment), and eBay. Poshmark is best for contemporary brands like Theory.
Selling Tips
Use keywords like 'minimalist', 'capsule wardrobe', 'quiet luxury', and 'layering'. Must be steamed before photographing to show quality. Provide pit-to-pit measurements as Theory runs slim.