50% polyester, 50% PBT Speedo trademarked Endurance+ fabric that is 100% chlorine resistant to last 20 times longer with new four-way stretch technology Constructed with our exclusive 9-thread flat lock stitching technology for stronger seams and a better fit with optimal stretch Hand wash cold water, hang or lay flat to dry Imported
Customer Rating: Summary: Good jammers Comment: Good, well-made jammers. True to size! Unfortunately, I listened to comments about other speedo jammers that all advised to get 2 sizes up. I am between 34 and 36 and went for size 38. They were definitely too big once wet. So I ended up switching to 34 which feel a bit tight at the bottom above the knee when they are dry, but feel perfect in the water. Customer Rating: Summary: Excellent Suit for Fitness Swimming Comment: This fabric blend gives more than 100% polyester, so it's more comfortable, yet still has longevity for use.
