Speedo jammer for boys - Endurance - BlackSpeedo Endurance+ Jammer for boys These swim trunks are perfect for you if you're a beginner or have been swimming for a while and want to take your swimming and confidence to the next level. The classic design, combined with a drawstring and integrated support, ensures both top level comfort and safety. Additionally, the swim trunks are made from a very soft and flexible material that is highly durable and will feel like new for a long time. A great