Speedo Vortex is made from Extra Life Lycra which I haven't seen before:
74% Nylon/26% Xtra Life Lycra
• Imported
• Hand Wash
• Xtra life lycra fabric lasts 5 to 10 times longer to give you more value for your money
• Resists bagging, sagging, and the effects of suntan lotion, skin oils, and chlorine
• Unique 9 thread flatlock stitching for superior fit and feel
• Traditional performance brief with 3 inch side panel and inner drawstring waist
• Made by Speedo, the world's No 1 swim brand
I notice that Speedo are now using patterned Endurance fabric:
http://www.amazon.com/Speedo-Mens-En...3SHJZWJ282 SN this will bring colour and variety back into our lives, well done Speedo !