Flattline Tennis
High Quality Tennis Education for Everyone
Where your goals become ours too
Tennis Lessons
Explore our renowned tennis education programs designed for all ages.
What People Are Saying
“All three of our kids have taken lessons with Flattline Tennis and we recommend them for all ages and ability levels! From beginner to advanced, Coach Anton builds tennis skills and a love for the game!”
— Kayla F.“My daughter really enjoyed her lessons with Anton. He really focused on areas she needed help in and showed her many new techniques! We definitely will be coming back for more lessons!”
— Nikki S.About
our company
Flattline Tennis is a company that believes in delivering you a high-quality product for your tennis needs. Our company believes in looking good on and off the court, as well as giving you a product you can connect with. We believe with our products you can develop deep connections with your goals and dreams, while using our products to express those to the world.
Featured Products
Built for movement. Inspired by the current.
The Sea Side Current Performance T-Shirt brings a bold coastal aesthetic to the court with a vivid blue-to-white gradient that flows across both the front and back. Designed for athletes who want performance without sacrificing style, this lightweight jersey delivers breathable comfort through intense training, match play, and everyday movement.
Made from ultra-light, moisture-wicking polyester, the shirt helps move sweat away from the body while keeping you cool and comfortable. The classic fit provides unrestricted movement without feeling overly tight, while the ribbed collar and armholes stretch naturally and return to shape for a dependable fit.
Whether you're competing under the sun, grinding through training, or simply repping the Sea Side collection off the court, the Sea Side Current delivers a clean, athletic look with the energy of moving water.
Product Features
- 100% polyester — durable, shape-retaining, and quick-drying
- Moisture-wicking fabric — moves sweat away to help keep you cool and dry
- 1x1 ribbed collar and armholes — comfortable stretch with reliable shape retention
- Extra-light 140 g/m² fabric — breathable and designed for unrestricted movement
- All-over blue-to-white gradient — bold coastal-inspired design on the front and back
- Matched seam thread — keeps the overall look clean and streamlined
- Printed care label — low-profile finish for added comfort
Care Instructions
- Machine wash cold (max 30°C / 90°F)
- Hand washing recommended to extend product quality
- Tumble dry on low heat
- Do not bleach
- Do not iron
- Do not dry clean
Bring energy to your game with vivid colors and peak athletic performance. The Summer Rhythm Tournament Performance T-Shirt seamlessly blends high-functionality with a soft, vibrant gradient aesthetic. Featuring a clean design and moisture-wicking technology, this jersey keeps you cool and dry whether you’re on the field, powering through gym sessions, or playing casual weekend matches.
Key Features
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Ultra-Lightweight & Quick-Drying: Made from extra-lightweight fabric (140 g/m²) that keeps you cool without weighing you down.
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Moisture-Wicking Finish: Effectively pulls sweat away from your skin to keep you comfortable during intense training.
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Flexible & Secure Fit: 1x1 ribbed collar and armholes stretch effortlessly as you move, then snap back for a clean, athletic shape.
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Vibrant Gradient Aesthetic: Eye-catching color transitions offer a modern, spirited look with vivid, crisp prints that stay bright.
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Itch-Free Comfort: Features a printed size and care label alongside color-matched seam thread for a seamless, polished feel.
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Quality Crafted: Built from strong, shape-retaining 100% polyester and proudly assembled in the USA.
Product Specifications
| Feature | Details |
| Material | 100% Polyester |
| Fabric Weight | 140 g/m² (Extra-Lightweight) |
| Fit | Classic Fit |
| Origin | Assembled in the USA |
Care Instructions
To maintain the bright print quality and performance of your shirt:
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Machine Wash: Cold (max 30°C / 90°F) — Hand washing is recommended to extend print quality.
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Tumble Dry: Low heat
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Do Not: Bleach, iron, or dryclean
Inspired by warm summer courts and endless hours of practice, the Desert Drift Jersey blends clean design with all-day performance. Featuring a soft sand-to-earth gradient and minimalist Flattline Tennis branding, this jersey delivers a modern athletic look that's equally at home during training sessions, match play, or everyday wear.
Built for athletes who appreciate simplicity and purpose, the lightweight performance fabric keeps you cool while moving naturally through every drill, sprint, and rally. The subtle earth-tone palette creates a versatile style that pairs effortlessly with any athletic outfit, while the bold sleeve message—TRAIN • COMPETE • GROW—reflects the mindset behind every improvement on and off the court.
Whether you're working on your game, heading to the gym, or enjoying a casual day out, the Desert Drift Jersey is designed to move with you and perform when it matters most.
Product Features
- 100% polyester — durable, shape-retaining fabric
- Moisture-wicking, breathable extra-light material (140 g/m²)
- 1x1 ribbed collar and armholes for stretch and recovery
- Vibrant, long-lasting all-over print colors
- Classic fit with printed size and care label; assembled in the USA
Care Instructions
- Machine wash cold (max 30°C / 90°F)
- Hand washing will help extend product life
- Tumble dry on low heat
- Do not bleach
- Do not iron
- Do not dry clean
Train • Compete • Grow