UK Shoe Size: 4-7. US Shoe Size: 5-7.5. EU Shoe Size: 37-40. 'No-Show Socks' or 'invisible' socks are the hidden sock that are worn perfectly underneath shoes, espadrilles and trainers for the ultimate in comfort, style and practicality. Designed using our signature attention to detail and worlds finest bamboo blend, these socks are the ultimate no-show socks. This spotted pink pair goes well with any outfit. Machine wash at 30-40°C (80-105°F) with like colours. Machine tumble drying not recommended. All orders will be shipped within 48 hours of placing your order.