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PBT Polyester

synthetic
C

Polybutylene terephthalate fiber used in performance swimwear. Superior chlorine resistance compared to standard polyester, with excellent elastic memory that keeps swimsuits fitting like new for longer.

Score Breakdown

60/100
Durability78
Comfort55
Breathability40
Warmth15
Moisture Wicking65
Sustainability28
Care Ease70

Best For

👔Formal/Office
Good

Good durability (78) and comfort (55) for office wear

🌧️Rain/Weather
Good

Good moisture wicking (65) and durability (78) for weather protection

Detailed Use Case Scores

athletic92
everyday10

Pros

  • ✓ Best-in-class chlorine resistance among swimwear fibers
  • ✓ Excellent elastic recovery — holds shape through hundreds of wears
  • ✓ Colorfastness resists fading from pool chemicals
  • ✓ Smoother hand feel than standard polyester

Cons

  • ✗ More expensive than regular polyester swimwear
  • ✗ Derived from petroleum — poor sustainability
  • ✗ Not breathable for non-aquatic use
  • ✗ Limited availability in retail fabrics

Care Guide

Washcold (30°C)
Cyclehand
Detergentregular
BleachDo not bleach
Dryflat dry
Ironlow
Dry Cleanavoid
SoftenerNo

Special Notes

• Rinse after every swim

• Never use fabric softener

Additional Care Tips

  • • Rinse in cold water after each use
  • • Hand wash with mild soap — avoid harsh detergents
  • • Lay flat to dry in shade — avoid direct sunlight
  • • Never use fabric softener — it degrades the fibers
  • • Store flat, not hanging, to preserve elastic memory

Cost

$$$$$

Mid-range

Shrinkage

Minimal shrinkage — follow care instructions

Eco Rating

High environmental impact