In the description it states that the tote sack is suitable for MicroSpikes AND KTS crampons. It was this description that lead me to purchase the MicroSpikes Tote Sack. My Large Kahtooola KTS steel crampons are way too large to fit in this bag. I am kind of glad. Because the bag itself if very basic; Thin. No drainage/breathing mesh. The drawcord doesnt seem especially secure (I wouldnt have trusted hanging the sack on the back of my rucksack crampons.
The sack may indeed be very suitable for MicroSpikes - I cant say. This is my opinion and my experience.
The good new is that I managed to return the Tote Sack and gain a full refund. The merchant selling the item (floodies) was keen and helpful with the return and advice on suitable crampon bag. I have since purchased the Kahtoola (Universal) KTS Tote Bag. A much larger, more robust, better quality item all round.