What is the sizing? What size should I buy...
What is the sizing? What size should I buy for 10 size shoe?
they go up to your knee does it matter...? lol
For a US Men's Size 10, you would need a L/XL in Volcom snowboard socks. Here are the sizing breakdowns from Volcom:
S/M = US Men's 5-8
L/XL = US Men's 9-13