Custom Men's Training Tanks, Singlets & Stringers Manufacturer

As a specialist men’s tank top manufacturer, we create high-performance athletic singlets for running and track, and stylish stringer tanks for the gym. Partner with us for your private label collection.

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Men's Activewear

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Men's Training Tanks

The Ultimate Top for Breathability & Freedom

Cutting

Specialized Athletic Cuts

We master both the minimalist running singlet for track performance and the physique-enhancing stringer tank for bodybuilding.

Second-Skin Comfort

Ultra-Lightweight & Breathable

Utilizing feather-light, moisture-wicking mesh and performance knits to maximize airflow and keep you cool.

All-Day Comfort & Mobility

Unrestricted Motion

Our designs feature deep armholes and racerback cuts to ensure a complete, unrestricted range of motion for the shoulders and back.

Chafe-Free Comfort

Durable, Chafe-Free

Built with flatlock seams and reinforced stress points to handle intense workouts and provide chafe-free comfort.

In-Depth Customization: Create Your Perfect Custom Training Tank

Your brand is unique, and your products should be too. Explore the possibilities below.

Fabric & Materials

Select from our extensive library of premium performance fabrics, or work with us to develop a custom material.
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Fit & Construction

Define the core structure of your sports garment, from the silhouette and fit to the seams and construction techniques.
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Features & Functionality

Incorporate functional elements that add value and meet your customers’ specific needs.
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Color & Finishing

Choose from a limitless color palette with Pantone® matching, and explore various finishes and treatments.
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Branding & Logos

Apply your brand identity with a range of high-quality techniques for a professional finish.
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Start Your Custom Men's Training Tanks in 4 Simple Steps

Our streamlined process makes bringing your custom activewear line to life straightforward and efficient.
Inquiry & Consultation

Inquiry & Consultation

Design & Sampling

Design & Sampling

Bulk Production & QC

Bulk Production & QC

Shipping & Delivery

Shipping & Delivery

From Fabric to Final Sportwear Garment

We combine meticulous planning with advanced technology and strict quality control at every stage of production.

Your Premier Manufacturer for Custom Running Singlets & Gym Tanks

As a leading manufacturer of men’s training tops, Sansansun excels in producing specialized athletic singlets. Our expertise covers high-performance custom running singlets for track and marathon, as well as stylish stringer tank tops for bodybuilding. We engineer every men’s training tank for maximum breathability and freedom of movement, using high-quality, moisture-wicking fabrics.

We are the ideal partner for your men’s activewear line. We offer comprehensive private label services for creating custom gym tank tops, alongside flexible wholesale workout tank tops programs. Whether you need a small run of bulk stringer tank tops or a large order of team singlets, our factory is equipped to deliver.
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Flexible MOQ & Sourcing

Flexible MOQ & Sourcing

From 30-piece wholesale orders for market testing to fully custom production runs, our flexible MOQ policy is designed to support your brand's growth.

Scale & Factory-Direct Pricing

Scale & Factory-Direct Pricing

Leverage our 600,000+ piece monthly capacity. Our scale and factory-direct model ensure you receive competitive pricing, maximizing your profit margins.

One-Stop Solution

One-Stop Solution

Go beyond manufacturing. Our solution includes precision strategic consulting and access to 800+ new annual styles for a faster, smarter launch.

Quality Guarantee

Quality Guarantee

Your products are backed by our rigorous multi-stage QC process, from incoming fabric inspection to a 100% final garment check.

Ready to Launch Your Next Best-Selling Collection?

Work with a partner who brings design, speed, and reliability together. We’ve helped 200+ growing brands launch faster, scale smarter, and win in their markets. You could be next.