Speedo Speedo Eco Endurance+ Jammer Our popular junior jammer, now with better eco-credentials. We’ve given our popular junior Jammer an update using our super-durable new ECO Endurance+ fabric. Retaining the streamlined cut and internal drawcord waist that make it so comfy during lessons and training, it’s now made from 50% recycled materials. Quick to dry and 100% chlorine resistant, it’s ideal for regular pool sessions. Material Content: 53% Recycled Polyester / 47% PBT Washing Instructions: Machine Washable