Sizing runs true to chart

The slim fit keeps lines taut without restricting movement—standard across our 100% cotton shirts range

The fabric runs at 140 GSM—substantial enough to hold its shape through a full day without feeling heavy

Wash in cool water to preserve the fabric's natural texture

If you prefer a roomier cut elsewhere

Basics Muscle Fit Bonnie Blue Heather Polo T-Shirt 21BSH44483 Sizing runs true to chartThis Bonnie Blue Heather muscle fit t shirt is crafted from a cotton polyester blend at standard GSM, offering a structured, body hugging silhouette. The fabric delivers reliable durability and everyday wearability without stretch, making it ideal for a clean, defined look. The blue heather tone works across seasonswear it solo during warmer months or layer it under jackets and overshirts when temperatures drop. The plain pattern keeps styling