noun
pull-up leather
A type of leather treated with oils and waxes that lightens when stretched or flexed; used in high-quality footwear and accessories.
このブーツはプルアップレザーを使っていて、履き込むほどに味が出る。
These boots are made of pull-up leather and develop more character the more you wear them.
プルアップレザーは、折り曲げると色が変わるのが特徴です。
Pull-up leather is characterized by its color change when bent.