Hyper Glow Trunk - Men's Underwear Energize your essentials with the Hyper Glow Trunk. This bold black and pink colorway brings high-energy style to your underwear drawer while delivering the premium comfort Step One is known for. The 4-inch inseam provides a sleeker fit, perfect for guys with thinner legs. Premium Comfort Features: First Pair Guarantee - Love them or they're FREE 4-Inch Inseam - Sleeker cut perfect for guys with thinner legs 3D Comfort Pouch - Hidden elastic technology surrounds you perfectly and keeps everything securely in place all day UltraGlyde™ Anti-Ride Technology - Specially designed panels prevent annoying leg ride-up, so you stay comfortable from morning to night Breathable Bamboo Viscose - Naturally moisture-wicking fabric keeps you cool and dry, produced sustainably in a closed-loop system Premium Fabric Blend - 95% viscose made from bamboo, 5% spandex for the perfect stretch Mix & Match Freedom - Combine any size, color, or style to create custom multi-packs Hyper Glow Collection Bold color meets unbeatable comfort. Because your underwear should match your energy.