SPEEDO Solar UV Block the Burn protective fabric features: Constructed to have 5-10 times more durability than ordinary spandex fabrics. Provides resistance to suntan lotions, skin oils and chlorine better than conventional fabrics. Helps resist sagging and bagging, keeping swimwear fitting durable swim after swim.
Incorporates Exclusive 9 Thread Flatlock Technology for a better fit. Dries quickly. Inner drawcord. Front gusset.
Brief provides least coverage with greatest freedom of movement. Logo hit at left hip.
Fabric: 80% Nylon/20% LYCRA® XTRA LIFE? fiber.

This is not the lesser price "Endurance", but the top of their line "SOLAR!" NOTE: Avoid disappointment and unnecessary delays, consider ordering "UP" one size of your actual waist measurement.