XTM Infant Heater Sock Size:0-2 The Twinzer fin layout is

The Twinzer fin layout is the same as a regular twin but with the addition of smaller side bite type fins that sit in front and closer to the rail line

Small lock with retractable plastic coated wire

Bright/moderate days- 23% Blue Chrome

Core: OP - Original Power

52% Merino Wool

XTM Infant Heater Sock Size:0-2 The Twinzer fin layout isXTM INFANT HEATER SOCK The Infant Heater is the perfect sock to keep little feet warm all year round. This sock boasts an impressive 40% Australian Merino wool content that is not only thick, but soft and comfortable to wear. FEATURES 40% Australian Merino, 40% acrylic, 15% polyester, 5% elastane The ultimate sock for warmth on extreme days Soft and comfortable for all day wear Certified Carbon Neutral Product Average Product Weight = 68g