Overall it does the job. Sometimes when it's hot outside when I put on a shirt they lose some of their stickiness. Definitely doesn't work with suede clothing. But they mention it in the description. Most of these products will not work for seude.
220 Plastic π Collar Stays for Organized Closet
9 Review
Stiffs Wurkin: Premium π Assorted Brass Collar for Polished Style
9 Review
π Revolutionize Your Style with Fashion Anchor Pack Collar Stays
8 Review
𧲠Wurkin Stiffs Plastic Magnetic Men's Accessories and Collar Stays for Stiff N Stay
8 Review