A compression fabric has to apply a defined, consistent pressure and hold it wash after wash. This page gathers the high-elastane knit structures that cover the compression, support and shaping range.
Polyester Stretch Interlock with Elastane
Weight window160–360 g/m²
CertificatesOEKO-TEX® · ISO
IncotermsEXW · FOB · DAP
Elastane carries compression: pressure is set by elastane share, weight and pattern tension. What matters is not day one but wash one hundred — repeated stretch and heat fatigue the elastane and pressure drops. High-recovery stretch interlock is the structure most resistant to that fatigue.
Shapewear needs shaping: ponte double-knit gives a built-up, opaque, shape-holding panel, while high-elastane interlock provides the wrapping pressure. Most products use both. Fersan knits, dyes and heat-sets these structures under one roof; each card carries the rationale, catalogue weight and a technical data sheet. Note: these structures are for sport/support compression — medical (mmHg-class) compression requires separate testing and certification.
Recommended fabrics
01
Polyester Stretch Interlock with Elastane
Stretch interlock + elastane
180–300 g/m²
In this application
The backbone of compression tops and sports bras: four-way stretch plus high recovery, holding pressure through repeated washing.
Composition
Polyester base + elastane; typically 5–12% (from comfort to high recovery). Higher levels belong to warp-knit power nets, not interlock.
Weight windows come from catalogue data; final specs are confirmed on a sample.
Engineering window
Weight window
160–360 g/m² (4.7–10.6 oz/yd²)
Compression / pressure
Pressure is set by elastane share, weight and pattern tension; the target level is confirmed on a sample (medical compression needs separate certification)
Recovery durability
Elastane fatigue lowers pressure; high-recovery interlock holds shape through repeated washing — see the abrasion/pilling guide
Moisture management
Fast-drying polyester on the skin-contact face plus an optional wicking finish
The link pre-fills the quote form with the fabrics on this page.
Frequently asked questions
Are these fabrics medical compression?
No. Sport/support compression differs from medical (mmHg-class) compression, which requires separate testing and certification. The structures here are for sport and shaping compression; a specific pressure target is confirmed on a sample.
Which structure suits shapewear?
Shaping is a matter of structure and weight: ponte double-knit gives a built-up, opaque, shape-holding panel, while high-elastane interlock provides wrapping pressure. The two are usually combined in one product.
Why does compression loosen over time?
Elastane carries the pressure; repeated stretch, heat and washing fatigue it. High-recovery interlock and correct care (low heat, avoiding chlorine and softeners) hold the shape for longer.
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