Pilot frixion pens have been my go to fabric marker for a few years now. They have a 0.7mm rollerball nib and the blue ink is erasable - either by
Frixion Pen (3 Pack), Erasable Pens
Pilot FriXion Clicker Erasable Gel Pen
PILOT FRIXION CLICKER: This pen combines the ease of a retractable pen with Pilot's erasable thermo-sensitive gel ink. No wear or tear so you can
PILOT FriXion Clicker Erasable, Refillable & Retractable Gel Ink Pens, Fine Point, Assorted Color Inks, 7-Pack Pouch (31472)
Pilot FriXion Ball Clicker Erasable Gel Pens, Fine Point, Assorted Ink, 7/Pack (31472), Staples
Pilot FriXion Erasable Rollerball Pen - Purple
Available in a choice of 10 Colours 10 assorted (1 of each all colours). To avoid accidental erasure, do not leave writing where it may be subjected
Pilot FriXion Ball 0.7mm Erasable Rollerball Gel Pen BL-FR7 - ALL Colours
Frixion Clicker Pen
Pilot FriXion Ball Clicker US Gel Pen - 0.7 mm - Navy
Pilot Frixion Erasable Gel Pens and Sets
Simply rub out your mistakes with the eraser stud and watch our unique gel ink disappear as if by magic!
Pilot FriXion Clicker Rollerball Pen Erasable Ink 0.7mm Medium Tip All Colours