Hook and loop size adjustment... Structured firm front panel otto cap brushed cotton twill flip edge visor low profile pro style cap white/pink with contrasting color visor edge and underbill. This Otto Pro Style cap features 100 percent cotton front, 100 percent polyester pro mesh back, and 6 panel construction. This Otto Pro Style cap features otto cap superior cotton twill flip edge visor low profile pro style cap white/pink 100 percent cotton, 6 panel construction. Structured firm front panel with contrasting color visor edge and underbill.