Give your outfit a fun twist with our Filled Optic trunk, even if no-one knows they're there! The quirky pattern of 3D geometric cuboid shapes is coloured in soft hues of blue for a playful design. A waistband in navy blue with the Happy Socks label completes this graphic design-meets-pop-art style. Crafted from a mix of cotton, underwear for men is designed with a fitted cut for comfort and support. Plus, the shorter leg and mid-rise band offer style and comfort. Sizes small through extra-large are available.