The mushroom texture gets its title by looking like the classic fins on the underside of a mushroom. This is important so that the fin can be compressed by the hand and flex into the space next to it.
Peatys Monarch Lock on Grips - Mushroom - Thin
Peatys Monarch Lock on Grips - Knurl - Thin
Peatys Monarch Lock on Grips - Knurl - Thick
Peatys Monarch Grips - Knurl - Thick
Peaty's Peatys Monarch Grips
Peaty's Monarch Pro Lock On Grip - Mushroom MTB Mountain Bike E-MTB DH Enduro