Direct Answer • Key Takeaway
Bobbling Happens When Friction Causes the Fibres on the Clothes' Surface to Rub Together. This Is Why the Underarm Area and Down the Side of Jumpers and Cardigans Are Often the Worst-Hit. Wool, Cotton, Polyester and Nylon Can All Be Affected by Bobbling While Linen and Silk Tend to Avoid the Problem.