From Patagonia

Warm, comfortable and durable, these wetsuit booties are made from stretchy 2mm 85% Yulex natural rubber/15% synthetic rubber by polymer content, with an internal split-toe design for increased control and grip. Best for water temperatures: 55-60 F/13-16 C. Made in a Fair Trade Certified factory.

• Stretchy 85% Yulex natural rubber/15% synthetic rubber by polymer content; the natural rubber is from sources that are Forest Stewardship Council certified by Preferred by Nature
• The boot is lined with a warm and stretchy 94% polyester (56% recycled)/6% recycled spandex thermal lining that dries fast and minimizes weight
• All seams are triple-glued, blindstitched and internally taped at high-stress areas
• Custom asymmetrical grip pattern improves dexterity and board control
• Microgasket at cuff helps prevent water entry
• Made in a Fair Trade Certified factory, which means the people who made this product earned a premium for their labor
• Made in Thailand.
• 283 g (10 oz)