Seamless activewear technical manufacturing background

Precision Industrial Engineering

Seamless Activewear Manufacturer

Direct Turkish Manufacturing

Turnkey circular knitting for premium athletic brands.

Overfit Seamless operates an advanced circular knitting plant in Beylikdüzü, İstanbul. We engineer, knit, dye, finish, and package high-performance seamless activewear entirely in-house for international private labels and fashion houses.

Operating 20 proprietary Santoni Top2V machines in gauge 28, our technical team builds compression, breathable micro-mesh zones, rib support, and sculptural body contouring directly into the tubular fabric matrix—eliminating lateral chafe points, lowering material scrap rates, and elevating athletic performance.

2019Established in İstanbul
20Santoni circular units
5-7daysFast prototype sampling
1000pcsStandard production MOQ

Integrated Program Matrix

Engineered manufacturing capabilities.

From technical technical yarn selection to automated finishing, explore our direct factory solutions built specifically for international commercial brands.

01

Seamless Activewear Sets

Engineered matching workout co-ords where sports tops and leggings are knitted simultaneously using synchronized yarn lots, guaranteeing uniform tensile elasticity, dye saturation, and structural consistency across all size runs.

02

Compression Leggings

Squat-proof, high-waist bottoms fabricated without uncomfortable side seams. We integrate anatomic gradient compression bands, breathable ventilation eyelets, and rear lifting contours stitch-by-stitch right on the knitting cylinder.

03

Ergonomic Sports Bras

High-support seamless bras equipped with integral rib underbust stabilization bands and engineered ventilation jacquards. Designed to prevent friction hot spots during rigorous athletic workouts without the need for bulky cut panels.

04

Custom Yarn Selection

We source certified Polyamide 6.6, recycled micro-nylons, cationics, and elastane combinations to attain your targeted tensile modulus, buttery handfeel, sweat-wicking speeds, and full non-sheer performance.

05

Private Label & Packaging

Full-scale OEM customization including high-definition knitted jacquard branding, heat-applied reflective badges, silicone wash labels, and branded recyclable polybags calibrated to retail shelf requirements.

06

Rapid European Transit

Benefit from Türkiye's unique geographic position with direct overland freight across the European Union in 3 to 7 days, avoiding multi-week ocean delays and high maritime freight surcharges.

Santoni Top2V · İstanbul Facility

Structured Execution

From digital tech pack to completed shipment.

Each phase is tracked and supervised under strict ISO-aligned quality protocols within our İstanbul plant.

  1. STAGE 01

    Yarn Selection & Lab-Dips

    We evaluate your hand-feel, compression, and recovery targets to source virgin or recycled polyamides and formulate certified Pantone color matches.

  2. STAGE 02

    Digital Programming & Fit Sampling

    Our knitting engineers code machine parameters directly from your specification sheets. Prototypes are ready in 5 to 7 days for fit, stretch, and squat-proof validation.

  3. STAGE 03

    Automated Circular Knitting

    Each style is knitted as a seamless cylinder on 20 Santoni Top2V units, precisely integrating variable rib textures and structural mesh inserts.

  4. STAGE 04

    Batch Dyeing, Assembly & QA

    Garments receive certified non-toxic piece dyeing and heat-setting, followed by automated gusset stitching, four-point QA audits, and branded export pack-out.

B2B Procurement

Frequently asked questions.

Get concrete answers regarding order minimums, private label logistics, fabric specifications, and custom production timelines.

We are a direct industrial manufacturer. We knit every order to exact client specifications in our own factory in Beylikdüzü, İstanbul. We do not stock mass-market excess inventory or resell trading lots—every single run is programmed specifically for your brand.

Our standard production MOQ is 1,000 units per design. To give activewear brands optimal sales flexibility, this quota can be partitioned across up to 2 size classifications and up to 3 individual color formulations.

Because technical programming and knitting machines reside directly under our roof, initial fit and fabric samples are typically delivered in 5 to 7 days once technical yarn blends and pattern specs are verified.

Yes. Our in-house technical engineers regularly reverse-engineer stitch counts, density matrixes, and compression gradients from reference samples or fit prototypes to establish a production-ready tech dossier.

Manufacturing in Turkey offers preferential tariff conditions with the European Union, faster transport via ground corridors (3–7 days to central Europe), stringent labor compliance, and transparent direct communication without large timezone barriers.

Launch Your Collection

Partner directly with our factory.

Submit your technical specifications, project quantities, and launch milestones. Our engineering team will review your requirements and provide fabric proposals, cost estimates, and prototyping schedules.

Direct Factory Production · 1,000 pcs per style · Worldwide Export