I love these reins! They are as anti-slip as they come! Tough horses beware, you cannot pull these reins out of your masters fingers.There are rubber "threads" woven throughout the webbing so it will not peel or break off. I ride professionally, everyday. The leather on the ends is supple, NOT CHEAP stiff leather, at all! These reins hold up and are truely anti-slip. I've even used them on one of my race horses, who is a very tough gallop and they worked like a charm.It is not very often that you find a great product at a great price. I put these on all my bridles.