Endura Baa Baa Merino Stripe Sock The Endura Baa Baa Merino Stripe Socks are technical cycling socks that feature a Merino wool blended fabric for warmth, moisture wicking and quick-drying properties. Stretch arch support adds support under the middle of your foot and an extra-long cuff adds additional warmth. Features Merino wool blend warmth, moisture-wicking and quick-drying properties Stretch arch support Long cuff Size Chart Size Small/ Medium Large/ Extra Large US Shoe Size5. 5-99. 5-13EU Shoe Size37-4242. 5-47UK Shoe Size5-8. 59-12. 5 | Endura | Baabaa Merino Stripe Sock Men's | Size Small/medium In Matte Black