Speedo swimsuits speedo girls solid endurance thinstrap muscleback swimsuit navy chlorine-resistant comfort built for active juniors. Our junior solid endurance thinstrap muscleback swimsuit is ideal for active swims. Comfortable and durable, it’s made from endurance fabric that resists chlorine and pilling. The muscleback design offers flexibility and freedom of movement, perfect for longer swim sessions. Body made of 53% polyester, 47% pbt. Built to last, stroke after stroke. Endurance fabric chlorine resistant pilling resistant muscleback gusset lined junior fit 3 key features endurance fabric the endurance fabric is speedo’s go-to choice for swimmers who spend serious time in the pool. It resists chlorine degradation far longer than standard swimwear fabrics. It also fights pilling, so the suit stays looking fresh session after session. Muscleback design the muscleback cut gives junior swimmers the flexibility and freedom of movement they need during longer training sessions. Thin straps keep the shoulders clear for a full, unrestricted stroke cycle. It’s a tried-and-tested shape trusted by developing swimmers at every level. Gusset lined for comfort a gusset lining adds an extra layer of comfort and coverage where it matters most. This thoughtful detail makes the suit suitable for active, extended pool sessions without discomfort. It’s the kind of practical finish that makes a real difference over a full training block. Full feature breakdown chlorine resistant the e...