I have a pair of Alpinestars SP-2 gauntlet gloves. When was taking the MSF course it rained and rained and rained! The gloves had been so soft and supple but after the rain turned stiff. They feel okay but how do I turn them back supple?
Leather treatment , and ware them . Around the house , heck sleep in them if u can .
Leather , especially after being soaked and dried out goes hard and the only was to relieve this is to get everything moving again . Leather treatment will put some nutriants back in .
use the same stuff that u can get for your sofa / couch . Its all the same stuff .