14th & Union Interlock Polo – Classic Fit Cotton Polo Shirt
Our Interlock Polo combines classic menswear tradition with modern fabric engineering. Crafted from 100% cotton interlock, this polo delivers a structured drape that holds its shape through the workday and weekend alike. The fabric’s double-knit construction creates a smooth face on both sides, eliminating the texture inconsistencies found in standard jersey knits.
We designed this piece for versatility. The tailored fit sits close to the body without constriction, making it equally appropriate under a blazer or worn solo on warm evenings. Three-button placket, ribbed collar and cuffs, and side vents at the hem complete the refined silhouette. Whether you’re dressing for business casual or elevated weekend wear, the Interlock Polo anchors your rotation with effortless style.
Fabric & fit details
Interlock Fabric Construction
Interlock differs fundamentally from standard jersey polo fabrics. While most knit shirts use a single-layer construction, interlock employs two interlocked rib fabrics knitted together simultaneously. This creates a double-thickness material with identical smooth surfaces on both front and back.
The structural advantage shows in everyday wear. Interlock resists pilling, maintains opacity even when stretched, and returns to its original shape after movement. The tighter knit also means the fabric breathes well without becoming sheer – a common complaint with lighter-weight polos. Our 14th & Union interlock polo uses a mid-weight cotton that balances drape with substance, giving you a shirt that looks polished whether tucked or untucked.
Sizing & Fit Guide
We cut the Interlock Polo in a tailored fit that follows the body’s natural lines without excess fabric. Chest measurements run true to size, with approximately 2-3 inches of ease for comfortable layering. Shoulder seams sit at the natural shoulder point, and armholes are cut higher than traditional polos for a cleaner silhouette under jackets.
Length falls to mid-hip on most builds, providing adequate coverage for tucking while remaining proportional when worn out. Sleeves end just above mid-bicep – shorter than a classic polo, longer than modern athletic cuts. If you typically wear between sizes, we recommend sizing up for a more relaxed fit or staying true to size for the intended tailored drape. The ribbed collar sits flat against the neck without gapping, and the fabric’s structure prevents the shoulder seams from rolling forward over time.
Care & Longevity
Machine wash the 14th & Union interlock polo in cold water with like colors. The pre-shrunk cotton fabric stabilizes during manufacturing, so expect minimal dimensional change after the first wash. We recommend turning the garment inside out before washing to preserve button finish and reduce friction on the outer surface.
Tumble dry on low heat or line dry for maximum fabric life. The interlock construction naturally resists wrinkling, but a quick steam or warm iron on the cotton setting will restore crispness if needed. Avoid high heat, which can degrade the elasticity in the ribbed collar and cuffs over time. With proper care, the fabric maintains its shape and color saturation through dozens of wear cycles. Store folded rather than hung to prevent shoulder dimpling from hanger pressure.
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Common Questions About the Interlock Polo
The Interlock Polo runs true to size with a tailored fit. It sits closer to the body than traditional polos, with reduced ease through the chest and waist while maintaining comfortable room in the shoulders. If you prefer a relaxed fit or plan to layer over heavier base layers, we recommend sizing up. Most customers find their usual size provides the intended modern silhouette.
Interlock uses a double-knit construction where two rib fabrics are interlocked together, creating a thicker, smoother material with identical surfaces on both sides. Standard polo fabric is typically single-layer pique or jersey knit. Interlock offers superior shape retention, reduced transparency, better wrinkle resistance, and a more refined drape compared to conventional knits.
Yes. The structured fabric and tailored fit make the Interlock Polo appropriate for business casual dress codes. The clean collar and polished drape work well under blazers, and the absence of visible branding keeps the aesthetic professional. Many customers wear it as an alternative to button-down shirts in offices that permit polos.
The cotton fabric is pre-shrunk during manufacturing to minimize dimensional change. You may notice 1-2% shrinkage after the first wash, which is standard for 100% cotton garments. Washing in cold water and tumble drying on low heat will maintain the size and fit. For maximum longevity, line drying is recommended.
Despite being double-knit, the interlock construction remains breathable due to the cotton fiber and knit structure. The fabric regulates temperature well and wicks moisture away from skin. Many customers wear it comfortably in summer months, though it provides slightly more warmth than lightweight jersey polos. The mid-weight fabric makes it ideal for year-round wear in most climates.
Core colors include navy, white, charcoal, and black in consistent stock. We introduce seasonal colors throughout the year, which may include lighter tones for spring and summer and richer hues for fall. Color availability varies, so we recommend checking the product page for current options in your size.
Turn the polo inside out before washing to reduce stress on the ribbed collar. Avoid hanging wet garments, as the weight of water can stretch the collar over time. Lay flat or tumble dry on low heat instead. When storing, fold the polo rather than hanging it to prevent hanger marks and collar distortion. The rib knit is engineered to resist stretching, but proper care extends its life significantly.