You're My Boy Blue All Pull Patch hats and patches have our brand’s authentic hook and loop fasteners which are compatible with VELCRO® fasteners. Easily attach any Pull Patch, all of which are sized 3” width x 2” height and designed with a built-in hook backing, to hat’s loop surface. We do not use VELCRO® brand fasteners, but all Pull Patch products are compatible with all VELCRO® loop fasteners. Key Features Fabric: 100% Polyester Back Material: Pull Patch Hook. Works with Velcro® Edge: Merrow Edge Size: 3" x 2" (3 inches wide by 2 inches tall) Printed in the USA SKU: PP-P-32-1972 Care Instructions Machine wash cold water. Air dry.