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Designed for Every Body. Made for Your Brand.

S-SHAPER
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Seamless Swimwear Collection

The seamless swimwear collection extends S-SHAPER’s seamless warp-knit technology to water sports and resort wear.

Garments are knitted from chlorine-resistant and uv-protective yarns, creating fluid swimwear structures with zero side seams and zero panel assembly. Zoned compression knitting delivers light shaping while eliminating traditional swimwear pain points: seam slippage and chafing. Includes one-piece swimsuits, bikinis, swim shorts, and rash guards.

  • 18 yrs manufacturing
  • 50+ countries served
  • OEKO-TEX Standard 100
Seamless Swimwear Collection

01 – Market Trends

Active Lifestyle Driving Seamless Swimwear Demand

Rising participation in sports and fitness activities worldwide is fueling demand for seamless swimwear, offering superior performance and durability.

The global activewear market is undergoing a significant transformation as athletes and fitness enthusiasts increasingly demand seamless swimwear that enhances performance while reducing chafing and discomfort. The shift toward functional, high-performance apparel is reshaping consumer expectations across all sport and fitness categories.

Major sports brands and emerging direct-to-consumer labels are investing heavily in seamless swimwear technology, recognizing that advanced knit construction delivers superior moisture management, compression zoning, and freedom of movement. European and north american markets lead adoption, while asia-pacific shows the fastest growth trajectory.

With the rise of athleisure and cross-category dressing, seamless swimwear is expanding beyond pure athletic use into everyday wear. The convergence of performance technology and lifestyle comfort positions this segment for sustained growth across multiple consumer demographics.

MOQ per SKU
1000 Pcs
Lead Time
35-45 D
Response
7*24 H
Monthly Capacity
800K

Our 800,000-piece monthly capacity is supported by 50 advanced seamless knitting machines and automated production systems, alongside 200+ industrial sewing machines. With approximately ten effective production months annually after planned holiday and maintenance periods, each seamless machine produces around 16,000 garments per month. This production structure ensures stable supply, consistent quality, and dependable delivery for large-scale industrial, performance, and professional apparel programs.

02 — Application Scenarios

Performance Meets Comfort in the Swimwear Collection.

Whether at the gym or on the field, the seamless swimwear collection provides the adaptive performance you need to excel.

  • Functional Training

    Functional fitness and boot camp

    • Designed specifically for functional fitness and boot camp using advanced seamless knitting technology
    • Abrasion-resistant fabric for durability for enhanced comfort and functionality
    • Perfect fit that moves with your body during functional fitness and boot camp
    • Durable construction built to withstand the demands of daily functional fitness and boot camp
  • Cycling & Spin

    Cycling and spinning classes

    • Optimized for cycling and spinning classes with targeted comfort features
    • Chafe-free seamless construction keeps you comfortable throughout the day
    • Seamless design eliminates irritation during extended cycling and spinning classes
    • Versatile enough for both dedicated cycling and spinning classes and casual wear
  • Swim & Water Sports

    Swimming and water athletics

    • Purpose-built for swimming and water athletics with specialized fabric technology
    • Quick-dry and uv-protective delivers reliable performance when you need it most
    • Lightweight construction makes it ideal for swimming and water athletics
    • Easy-care fabric maintains its appearance through repeated use
  • Active Travel

    Active travel and adventure

    • Tailored for active travel and adventure with user-focused design elements
    • Packable and odor-resistant design enhances your experience during active travel and adventure
    • Adaptable design transitions seamlessly between activities
    • Premium quality construction ensures lasting value and performance

03 — Product Lineup

The Complete Seamless Swimwear Collection

A coordinated seamless swimwear collection featuring seamless one-piece swimsuit, seamless bikini set, and seamless rash guard, engineered for seamless integration or standalone private-label development.

Seamless One-piece Swimsuit

Seamless One-piece Swimsuit

Specifications Details
Product Name S-SHAPER Seamless One-Piece Swimsuit
Construction Type Integrated tubular knit body (zero side seams, zero underbust seam)
Neckline Options Deep V-Neck / U-Neck / Square Neck / Turtleneck
Back Design Racerback / U-Back / Cross-Back / Cutout / Full Coverage
Bust Support Integrated fixed cup / Removable pad pocket
Waist Shaping Light gradient compression knit (optional)
Gusset Structure Seamless crotch zone with cotton-feel comfort lining
Size Range XS – 3XL
Functional Yarn Chlorine-Resistant Nylon, UV-Protective Yarn, Recycled Nylon
MOQ 1000 Pcs/style/color
Seamless Bikini Set

Seamless Bikini Set

Specifications Details
Product Name S-SHAPER Seamless Bikini Set
Top Construction Integrated knit bra-style top (long sleeve rash guard option)
Bottom Construction Seamless high-waist / mid-waist / low-waist swim brief
Top Support Fixed cup / Removable pad / Unlined
Bottom Coverage Standard brief / Boyleg / High-waist tummy control
Size Range XS – 3XL (separate top/bottom sizing available)
Functional Yarn Chlorine-Resistant Nylon, UV-Protective Yarn, Recycled Nylon
MOQ 1000 Sets/style/color
Seamless Rash Guard

Seamless Rash Guard

Specifications Details
Product Name S-SHAPER Seamless Rash Guard
Construction Type Integrated knit long/short sleeve top (one-piece option available)
Neckline Options Crewneck / Mock Neck / Turtleneck
Sleeve Length Short / 3/4 / Long (thumbhole option)
UV Protection UPF 50+
Size Range XXS – 6XL
Functional Yarn UV-Protective Yarn, Chlorine-Resistant Nylon, Cooling Yarn
MOQ 1000 Pcs/style/color

Leading brand in dynamic insulation

Woman wearing a black hooded layer against an orange background

+10 °C

30% Lighter
30% Less Material Used

21℉ Warmer Than Competitors

Our new-generation functional insulation fabric delivers up to 30% better thermal performance compared to conventional materials.
Through advanced structure optimization, it reduces material usage by 30% while maintaining the same level of warmth and comfort.

Leading Brand in the Field of Sustained Cooling Sensation

Woman in a blue fitted sports top against a blue background

-2°C

The World’s Only Material with Continuous Cooling Performance

Heat Release Cooling Material

Our advanced cooling functional fabric delivers efficient thermal regulation for enhanced comfort in warm environments.
Through advanced material design, it effectively reduces body heat accumulation while lowering overall carbon footprint by up to 50%.

04 — Why S-sHAPER

Built around real performance, comfort, and scalability needs.

Built on real performance needs, S-SHAPER addresses comfort, support, and durability through advanced material and structural innovation.

Seamless Comfort

Traditional seams create friction and pressure.

Advanced seamless construction. Smoother contact and unrestricted movement throughout wear.

Unbalanced Support

Generic garments lack targeted body support.

Engineered compression zones. Balanced flexibility and support across key body areas.

Heat & Moisture Build-Up

Sweat accumulation reduces wearing comfort.

Breathable technical knitting. Enhanced airflow and moisture management for all-day comfort.

Fit Instability

Repeated wear can affect garment shape and fit.

High-stretch performance fabric. Reliable shape retention and adaptive body conformity.

Skin Irritation

Rough materials can irritate sensitive skin.

Soft-touch functional yarns. Lightweight comfort with smooth next-to-skin feel.

Production Limitations

Brands need reliable scaling and customization support.

Integrated OEM/ODM capability. Flexible manufacturing and private-label development solutions.

05 — Material Engineering

The technology behind seamless performance.

Every seamless product begins with advanced fiber engineering. At S-SHAPER, we combine premium technical yarns with Santoni seamless knitting technology to achieve optimal stretch, breathability, thermal regulation, durability, and next-to-skin comfort across multiple performance applications.

Technical yarn and fabric sample illustrating high-stretch performance nylon

High-Stretch Performance Nylon

Engineered nylon fibers offering exceptional elasticity, recovery, and long-term shape retention during active movement.

For: Activewear · Shapewear · Base Layers

Technical yarn and fabric sample illustrating silver ion antimicrobial fiber

Silver Ion Antimicrobial Fiber

Silver-ion infused yarn technology designed to reduce odor-causing bacteria and maintain freshness during extended wear.

For: Sportswear · Medical Wear · Workwear

Technical yarn and fabric sample illustrating far-infrared thermal fiber

Far-Infrared Thermal Fiber

Bio-ceramic infused fibers engineered to retain body heat and improve thermal comfort in low-temperature environments.

For: Thermal Wear · Outdoor Systems · Winter Layers

Technical yarn and fabric sample illustrating moisture-wicking cooling fiber

Moisture-Wicking Cooling Fiber

Advanced cooling yarns developed for rapid moisture transfer, heat dissipation, and breathable next-to-skin comfort.

For: Activewear · Shapewear · Base Layers

Technical yarn and fabric sample illustrating ultra-soft skin-friendly fiber

Ultra-Soft Skin-Friendly Fiber

Soft-touch yarn systems designed to minimize irritation while enhancing comfort for sensitive and prolonged wear applications.

For: Maternity · Intimates · Loungewear

Technical yarn and fabric sample illustrating merino wool technical blend

Merino Wool Technical Blend

Fine merino wool blended with performance fibers for natural temperature regulation, softness, and odor resistance.

For: Outdoor Wear · Socks · Cold Climate Systems

Technical yarn and fabric sample illustrating recycled sustainable fiber

Recycled Sustainable Fiber

Certified recycled yarns engineered for environmentally responsible seamless production without compromising durability or comfort.

For: Sustainable Collections · OEM Programs · Eco Performance Wear

Technical yarn and fabric sample illustrating uv protection fiber

UV Protection Fiber

Technical UV-resistant yarns engineered to provide lightweight sun protection and breathable comfort for prolonged outdoor exposure.

For: Outdoor Wear · Golfwear · Workwear · Water Sports

06 — From Concept to Delivery

How we make your order.

  1. 01

    Day 1-3

    Brief & Quote

    Send tech pack or references. Detailed quote within 48 hours.

  2. 02

    Day 4-21

    Sampling

    Pattern, knit trials, fitting. Up to 2 sample rounds included.

  3. 03

    Day 22-25

    PO & Deposit

    Sign PI, 30% T/T deposit triggers procurement.

  4. 04

    Day 26-65

    Production

    Knitting, sewing, dyeing, AQL 2.5 inspection.

  5. 05

    Day 66+

    Shipment

    Final inspection, balance payment, port handover.

Sea Freight
15-35d
Air Freight
5-8d
Express
3-5d
Warranty
12 months

07 — Buyer FAQ

Questions answered.

Do you support OEM and private-label production?

Yes. We provide OEM/ODM manufacturing services including logo customization, packaging development, color matching, size specifications, and full private-label seamless apparel programs.

What seamless products can you manufacture?

We produce activewear, shapewear, maternity wear, underwear, medical compression garments, base layers, socks, and technical performance apparel.

What seamless knitting machines do you use?

Our production is based on advanced Italian Santoni seamless knitting systems, allowing precise compression control, body-mapped ventilation, and high-efficiency seamless garment construction.

Can you develop custom yarns and functional fabrics?

Yes. We work with technical yarn suppliers from Italy, Japan, and Germany to develop antimicrobial, cooling, thermal, compression, and recycled yarn systems.

Do you provide sampling before mass production?

Yes. We offer product sampling and prototype development before bulk production to ensure fit accuracy and branding consistency.

How do you ensure product quality and consistency?

All products undergo strict quality control throughout yarn sourcing, seamless knitting, dyeing, finishing, and final inspection to ensure durability, stretch performance, and consistency.

09 Let's Collaborate

Let's build your next best-seller together.

S-SHAPER does not sell under its own brand. We are 100% focused on OEM and ODM services — engineering seamless shapewear and base layers exclusively for your label.

Headquarters
Shenzhen China
Services
OEM / ODM Joint Development
Sampling
7 — 10 Business Days
MOQ
1,000 Pieces
Categories
190 Seamless Solutions

Born from Love ◆ Engineered for Precision

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