Ski Over The Calf Socks Size:Medium and it set the standard and it set the standard in this category for a decade Features 10L capacity with a stable design for hassle free water collection and transport Welded seams and recycled fabric keep it watertight and quick drying Lightweight and foldable for easy packing and saving space Convenient base handle and volume markers for easy pouring and measuring Sturdy grab handle makes scooping from shallow water and precise pouring into containers quick and easy Makes adhering to Leave No Trace Seven Principles simple and easy Made from lower impact bluesign APPROVED Keep your little ones warm and cozy all day on the slopes with the Kids' Ski Light Cushion OTC Socks and the warmth of Merino wool