The leather is 5 oz veg-tan with handles that are a bit thicker, 7-8 oz. Leather from Tärnsjö Tannery, Sweden.
Re-purposed old vintage brass zip of good quality.
Zipper flaps lined with black velvet.
0.6 mm Ritza Tiger thread for the main body and 0.55 Crimson Hide thread for details such as handles and puller.