Walker Tape Ultra Hold Brush On Adhesive 0.5 fl oz is a waterproof acrylic based soft bond adhesive that has a strong, secure hold which can last for up to 3-6 weeks.
This is probably the most popular maximum wear adhesive amongst hair system wearers.
Ultra Hold from Walker Tape Co is the industry leader in hair system adhesives. It is famous for long hold times so you can go longer between re-application. It is waterproof so you can swim, shower and lead your life without worry.