These are the gloves that can be attached to the coveralls. They are now available as a separate purchase as well.
 
The blue gloves have three sizes 9/L, 10/XL and 11/2XL. The green gloves have just one big size 10/XL. Size guide for these can be downloaded here.
 
The blue glvoes say they are Showa Chemrest 660. Their website with additional information is here.