The Disco Boom Splice Jammer is a funky jammer with sights set to gold. This jammer gets its durability and comfort from the poly/spandex blend. ProLT Fabrication. UPF 50 . Waist Drawcord. Shell is 82% polyester and 18% creora highclo elastane. Lining is 50% polyester and 50% reprocessed polyester.