Quiksilver Mercury Trident 21" Boardshorts Built for long walls, Mercury Trident 21” carries the Mercury Collection torch. SURFSILK 4-way stretch delivers smooth-surface comfort, durable, quick-dry performance in an 88% partially recycled polyester/12% elastane blend. Fixed waist and regular straight fit stay locked; custom paneled “trident” design, side zipper pocket, Quiksilver logo details, matching fabric applique. Outseam: 21 inches, long Fit: Regular, straight Waist: Fixed waist Branding: O5 Quiksilver logo details, Mercury Collection callout, matching fabric applique Custom paneled “trident” design Side zipper pocket