Bros Funds Muscle Shirt

Meet the Bros Funds Muscle Shirt, a men’s sleeveless cotton tank top designed for movement, comfort, and everyday urban style. The kind of top you reach for when you want freedom without sacrificing fit.

Premium fabric you can feel — crafted from 100% airlume combed ring-spun cotton for an exceptionally soft, smooth touch. With a fabric weight of 4.2 oz/y² (142 g/m²) and a tight 32 singles count, this tank balances substance with breathability, so you stay comfortable from warm-up to cooldown.

Built for real life, not just looks — a relaxed fit and wide, low-cut armholes give you uninhibited range of motion for workouts, yoga, or a casual day out. The side-seamed construction helps the shirt hold its shape wash after wash, resisting twists and sag so you always look put together.

Why it stands out — this isn’t your average sleeveless tee. The combination of premium cotton, an intentionally roomy cut, and bold armhole styling creates an urban, athletic silhouette that layers effortlessly under jackets or worn solo on hot days. It’s the kind of tank that looks as good in a gym studio as it does on city streets.

Key details at a glance

• Material: 100% airlume combed ring-spun cotton
• Fabric weight: 4.2 oz/y² (142 g/m²); 32 singles for a soft, durable feel
• Fit: Relaxed, with wide, low-cut armholes
• Construction: Side-seamed for shape retention
• Sourcing: Blank product available from Nicaragua, Honduras, or the US
• Safety/compliance: Meets flammability level requirements; EU GPSR compliance with 2-year warranty
• Age: For adults

Who this is for

• Men seeking a comfortable, breathable tank for workouts, yoga, or outdoor activities
• Anyone who wants a versatile sleeveless top that pairs well with jackets, hoodies, or shorts
• shoppers who value material quality and a relaxed yet defined silhouette

Practical use and care tips

Wear it for gym sessions, morning walks, or lounging at home. Layer under an open shirt or denim jacket for a laid-back monochrome look. For best results, wash with like colors and avoid heavy dryer heat to preserve the cotton’s softness over time.

Why choose this over other sleeveless tees — it combines premium cotton with thoughtful design details that enhance comfort, durability, and style longevity. It’s not just a tank top; it’s a reliable staple built to perform, wash after wash, in a range of everyday scenarios—from the treadmill to weekend errands.

For any product safety inquiries or EU-related questions, the brand notes compliance with GPSR and provides contact options via the EU representative. This ensures you can shop with confidence while enjoying a comfortable, functional, and fashionable sleeveless option.

This soft, sleeveless tank is so comfy you're going to want to wear it everywhere, be it on your couch, out on a walk, or during a yoga class. The relaxed fit and low-cut armholes gives it a casual, urban look.

• 100% airlume combed ring-spun cotton
• Fabric weight: 4.2 oz/y² (142 g/m²)
• 32 singles
• Relaxed fit
• Side-seamed construction
• Wide, low-cut armholes
• Blank product sourced from Nicaragua, Honduras, or the US
Age restrictions: For adults
EU Warranty: 2 years
Other compliance information: Meets the flammability level requirements.

In compliance with the General Product Safety Regulation (GPSR), Oak inc. and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at gpsr@sindenventures.com. You can also write to us at 123 Main Street, Anytown, Country or Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.