Birkenstock Adults' Single Pair Cotton Stripe Crew Socks Bring signature Birkenstock style to everyday outfits with the Birkenstock Adults’ Cotton Stripe Crew Socks. The high-cotton knit feels comfortable against the skin, while an elasticated, pressure-free cuff provides a secure grip without feeling restrictive. A striped crew sock can turn the space between a shoe and pant hem into part of the outfit. A flat toe section creates a smoother feel inside footwear, and the unisex design makes this single pair a versatile everyday option.