Birkenstock Sydney Blue Socks • Color: Blue • One pair • Super cozy and comfy • Ideal for Birkenstock sandals and shoes • Content: 96% cotton, 2% polyamide, 2% lycra • Sanitized Antimicrobial treatment Brand new original packaging Enjoy fast shipping from a trusted Poshmark Ambassador with over 1,790 pieces sold and 100+ Love Notes received to date!