PBT Polyester

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