Speedo 5cm Endurance Swim Briefs are made using advanced chlorine-resistant fabric that will certainly last the distance. The elastic waistband has an internal draw cord that allows you to customise your fit while the front of the brief has been lined for added comfort. Available in a range of colours, the 5cm endurance brief is ideal for swim training, regular pool use and Triathlon events.Fabric: 50% polyester 50% PBT polyesterFully lined front with an elastic waistband and drawstring for an enhanced fitEndurance+ fabric is 100% chlorine resistant, quick drying and retains its shape5cm side leg seamIdeal for swim training and regular pool use as well as triathlon eventsSolid colour design with a small speedo logo