While its call Double Palm work gloves & Heavy-duty work gloves, you can use this working gloves in different works like, Construction, Rigging, General Handling, Hot Iron Handling, 

We are producing it Double palm gloves as per client  request, and it depends on your work application, 

it has a different part of the material, Split leather, Grain Leather, Fabric, Cuff and inner lining & all material is optional like,

Front Palm: Cow split leather, cow grain leather, sheep & Goatskin and also Fabric can be used,

and leather thickness normal use for this glove 1.1 mm and it also increases & decreases with your requirement, 

Double Palm, Double palm should be cow split leather, Cow grain leather, sheep or goatskin, 

Back Palm: Cotton fabric, nylon fabric, Split leather also use in back, 

Cuff: Rubber cuff, Fabric pasted cuff, split leather cuff also use,

Inner lining: Inner lining depend on work, simple fleece in the front side or full flees lined

Color: Leather Color, cuff color & fabric should be any kind of like, Red, Black, Blue, Yellow, Green, Greenlining, etc 

Sizes:  mostly use XL size, 10.5 inches long but it also optional, S to XXXL sizes because all over the world human hand size different kind of

Packing: 12 Pairs per Poly Bag- 10 Poly Bags Per Carton,