GymBum UK – Ultimate Performance Tee

Built for movement and engineered for everyday performance, the Ultimate Performance Tee delivers lightweight comfort with the durability needed for serious training. Constructed from breathable polyester mesh, it allows air to circulate freely while helping regulate body temperature during intense workouts.

QuickDry moisture-wicking fabric helps pull sweat away from the skin, keeping you cool, dry, and focused whether you're pushing through high-intensity training or staying active throughout the day.

The relaxed athletic fit provides unrestricted movement, while the extended length ensures reliable coverage during lifts, squats, and dynamic training. Lightweight yet durable, this tee is designed to maintain its shape and colour through repeated training sessions and washes.

Finished with clean GymBum styling and performance-driven construction, the Ultimate Performance Tee delivers the balance of comfort, durability, and athletic performance expected from premium training apparel.

Reach for the Summit.

Why You'll Love It

• Breathable polyester mesh helps regulate body temperature during workouts
• QuickDry moisture-wicking fabric keeps you cool and comfortable
• Relaxed athletic fit for unrestricted movement
• Extended length for better coverage during lifts and training
• Lightweight construction designed for all-day comfort
• Durable fabric built to maintain shape and colour over time

Performance Fabric

• 100% breathable polyester mesh
• Fabric weight: 4.13 oz./yd²
• Lightweight performance construction
• QuickDry moisture-wicking technology

Construction Details

• Side-seamed construction for improved durability
• Reinforced collar binding for long-lasting structure
• Short raglan sleeves for enhanced shoulder mobility
• Classic round neckline for versatile everyday wear

Performance & Fit

The Ultimate Performance Tee features a relaxed athletic fit that moves naturally with your body. Raglan sleeves allow full shoulder mobility, making it ideal for lifting, functional fitness, and dynamic training movements.

The extended length provides reliable coverage during squats, presses, and overhead exercises.

Designed For

• Strength training
• Cross training & HIIT
• Running & cardio
• Functional fitness
• Everyday activewear

GymBum Performance Standard

Every GymBum product is designed with a balance of performance, durability, and clean athletic styling.

Our goal is simple: create premium activewear that performs in the gym while remaining comfortable enough for everyday wear.

Reach for the Summit.

Size guide