<ul><li>A new study reveals how knitted fabrics can take on different shapes due to friction between neighboring loops of fiber.</li><li>The friction in knit fabrics allows them to hug close to the curves of the body and head.</li><li>When a knit fabric is stretched and released, it can spring back into different metastable states, depending on the extent of stretching.</li><li>Understanding the role of friction in knit fabrics may help explain the process of 'blocking,' where the fabric is shaped to the desired form after knitting.</li></ul>

Friction is the key to cozy knits

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