From Sperry Men's, the Mako 2-Eye Boat Shoes feature:

• Genuine handsewn Tru-Moc construction
• Genuine all leather upper
• Leather lining
• Adjustable 360° lacing system™ with rust proof eyelets
• Padded tongue and collar
• Shock absorbing EVA heel cup with heel pillow
• Dual-density bottom with cushion midsole
• Non-marking rubber outsole with razor cut Wave-Siping™