Alpha wave fiber features:
*Soothe the mood
*Balance mind and Body
*Improve sleep quality
*Restore mental and physical stamina
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*PET DTY 75D/72F FD
*PET DTY 75D/72F/2 S+Z捻 FD
*PET DTY 50D/72F FD
*PET DTY 50D/72F/2 S+Z捻 FD
*Nylon DTY 70D/48F FD
*Nylon DTY 70D/48F/2 S+Z捻 FD
*Nylon DTY 40D/48F FD
*Nylon DTY 40D/48F/2 S+Z捻 FD