Part way through a purchase of over 50 Alpha Eagle helmets. Only problem encountered was an eye relief adjustment problen when fitting Anvis 9 NVG's to the helmet using the supplied rigid visor. Visor has now been modified by Helmets Integrated and appears to have all been fixed. All who are using the helmet have commented favourably wrt comfort, ease of adjustment, ability to wear for long periods without developing hot spots. Hope this helps. PM me if you require any further.