From lifesystems the blister first aid kit is compact with contents for treating blisters all protected in an iconic red case with belt loop attachment weighing a mere 75g the blister kit it makes a convenient addition to the gear for your information blisters on your feet are one of the most common walking injuries try rubbing sensitive parts of your feet with petroleum jelly before you start this gives your skin more elasticity and reduces friction use a plaster at the first sign of a blister