From Sperry Top-Sider, the Billfish men's boat shoes feature:

• leather upper with air mesh panels for breathability
• genuine handsewn Tru-Moc construction
• 360° Lacing SystemTM with rust-proof eyelets for a secure fit
• padded tongue
• molded EVA cushion midsole for comfort
• non-marking rubber outsole with razor-cut Wave-SipingTM for ultimate wet/dry traction