REDSTER LF SL The new Atomic Redster LF SL is our super-progressive helmet for skiers looking to bring a little World Cup style to their own slalom skiing. It?s available in Mikaela?s own personal helmet design, with a half ABS hard shell, Live Fit for an instant individual fit and size adjustment so you can fine-tune your fit at the back of the helmet. It?s also compatible with Chin Guard Redster SL and comes with a removable and washable full cap lining. And like all our helmets it?s designed and developed in-house at Atomic.