What You Will Need

1x Pair of Replacement Ear Cups (Part Numbers Below) 
1x Medium to Large slotted Screwdriver

Everest 300/Elite 300
SC-HM20000200-B  LEATHER CUSHION (R) BLACK 300NXT
SC-HM20000100-B LEATHER CUSHION (L) BLACK 300NXT
SC-HM20000500-B LEATHER CUSHION (R) WHITE 300NXT
SC-HM20000400-B LEATHER CUSHION (L) WHITE 300NXT

Everest 700/Elite 700
SC-HM21000200-B LEATHER CUSHION (R) BLACK 700NXT
SC-HM21000100-B LEATHER CUSHION (L) BLACK 700NXT
SC-HM21000800-B LEATHER CUSHION (R) WHITE 700NXT
SC-HM21000700-B LEATHER CUSHION (L) WHITE 700NXT

Removing the Ear Cups

1. Place the headphones on a table and while holding the ear cup with one hand gently and slowly insert the tip of the screwdriver between the ear cup and headphones.
2. Once inserted gently twist the screwdriver until there is a slight separation between the ear cup and the headphones. Note: Do not twist the screwdriver too much as this may damage the headphones.
3. Continue step 1 and 2 moving the screwdriver until there is gap between the cup and the headphones all the around the cup.

Installing the New ear Cups

1. Hold the ear cups tightly with one hand while holding the headphones with the other and gently pull until the cup is completely separated. Note that some headphones may have more adhesive than others so more pressure might be required to remove the ear cup. 
2. Find the replacement ear cup that matches the side removed (they are labeled L and R inside the cup). Align the letter in the cup so that it is legible with the bar at the top.
3. Gently press the ear cup into place ensure that the pins remain aligned.
4. Once there is a slight click sound press more firmly to set the ear cup into place.