The 3D SlimFit headband integrates the HeadLamp’s electronics directly into the performance fabric, giving you a comfortable fit with no bounce or slip. This is perfect for fast-paced adventures like trail running and cycling and precise activities such as climbing and summit scrambling.

Four lighting modes put you in control, while the USB charging delivers a reliable battery-free performance that can be charged remotely from a power bank during overnight and multi-day trips. The durable materials and IPX4 water resistance ensure that the BioLite HeadLamp 425 can take what you throw at it, giving you full confidence when exploring after dark. 

• 3D SlimFit technology – slimline electronics are weaved into the performance headband
• Moisture-wicking smart fabric
• Ultralight – weighs just 85 grams
• Ultrathin front – just 9mm
• Back battery compatible with Pass-Thru charging
• Micro-USB charging
• Front panel tilts downward for easy map reading
• Easy-adjust clips
• IPX4 water resistance
• Lighting modes: White spot, white strobe, white flood, red flood, spot + flood, rear red flood, rear red strobe
• Lumens: 425
• Beam distance: 85m
• Burn time (hours): 4 high, 60 low
• 1000 mAh li-ion battery recharges via micro USB
• Battery indicator: 4 LED indicator shows battery level
• Weight: 78g