Material and warmth - Neoprene socks are made with 2mm SBR ultra-stretch neoprene for flexibility and environmentally friendly materials. The exterior is imported nylon fabric, highly elastic and durable; the middle insulation is SCR neoprene, highly scalable, waterproof and heat-insulating; Soft close skin heating to keep warm. Non-slip grip and craftsmanship - The bottom features non-slip rubber particles for safer and more comfortable wearing. Ingenious craftsmanship with clean, beautiful stitches; boneless six-needle four-thread production for added comfort. Ultra-stretch comfort and eco-friendly - Ultra-stretch fabric greatly reduces the feeling of restraint created by a wetsuit. Provides more freedom, flexibility and first-class comfort. Environmentally friendly, healthy, soft and comfortable. Use scenarios and performance - Ideal for diving, snorkelling, paddling, kitesurfing, kayaking, canoeing. Ultra-stretch fabric offers sun protection, warmth, anti-stress and anti-scratch properties.