Polyester suits are much longer lasting, but they also don''t stretch as much. Be sure to measure the waist of the swimmer before ordering. My son needed one size larger than we ordered. He couldn''t even get it up.

Fabric feels substantial, comfortable fit

These jammers are great for training and distance swimming.  They fit more snug than the non durafast jammers, but still feel great.  I like my suits tight and snug for a lot of movement.  After one use, I was hooked for another pair