These are being designed as our most versatile mask. Options include top and bottom strap. With or without the cylinder clasp for easy tightening. A variety of printing techniques are available and it can be modified to an earl loop if required. The open bottom area is for the insertion of additional filtering if required. tiebehindmasks$8.00Add-On: Top String OnlyAdd Bottom String(+2.00) Quantity: Wholesale prices available at $10/ea (not including shipping) minimum order $300 of assorted t-shirts. contact via text: 702-544-1048. LA.yQue.net - Clickable Map for local Los Angeles t-shirts. yQue.com(c) Copyright 2024, All Rights Reserved.