German Brown by Walker Tape has been a standard in the hair replacement industry for many years. It's generally used in a hard bond adhesive for permanent attachments. German Brown is applied directly to the hair system and attaches more firmly to the hard bond adhesive than other types of tape. Generally, when a hard bond adhesive fails, it's due to the tape it is attached to. With German Brown, you don't have to worry about the hard bond disconnecting from the tape. Use with a poly system or lace system with a poly strip where the adhesive will sit.
Extended wear (1-2 weeks) tapes are great for people who need something more than just for day to day wear, but who are not looking for a very long term hold. This is a popular type of tape because many people re-apply their unit in under two weeks.