Rhythm Shaken Trunk The Rhythm Shaken Trunk combines performance stretch with a clean vintage-inspired look for days in and around the water. Made from a polyester-spandex blend with 4-way stretch, it provides the flexibility needed for swimming, surfing, and active beach days. The Vintage Black wash keeps the main body understated, while all-over print detailing at the back and waistband panels adds subtle contrast. Details Material: 92% polyester / 8% spandex Stretch: 4-way stretch fabrication Design: All-over print at back and waistband panels Features: Contrasting waistband panel construction Color: Vintage Black