SIZE GUIDE
FRAME SIZE: ONE SIZE
The Altera stealth glasses have a unique and versatile frame to ensure total comfort
FIT
What is the fit of the glasses?
The fit determines how much of the face is covered by the glasses. The glasses with Altera Stealth frame have a REGULAR FIT by default, but depending on the type of lens mounted the fit can vary as you can see in the image.
lenses:babalens
fit: narrow
lenses:mantalens+bumper
fit: regular
lenses:teelens
fit: regular
lenses:metalens
fit:wide
NOSE PADS
NOSE PAD: ADJUSTABLE
All nose pads on Altera glasses are adjustable to your liking.
LENS GUIDE
OUTDOOR T20 LENS
METAMORPH LENS FOR EXTREME SPORTS
Lenses specifically designed for outdoor sports that are practiced outdoors. They offer protection from UV-A and UV-B rays and meet the need to protect from external agents (such as wind, dust, insects, etc.). Safe and resistant in the event of accidental impacts.
LIGHT CONDITIONS:
SPORT: Snowboard/Hiking/Skiing/Cycling / Running / Mountaineering / Horse Riding / Trekking
ZEROREVERB Z11 LENS
METAMORPH LENS FOR WATER SPORTS
Conceived to offer 100% UV-A and UV-B protection. Polarized filter and additional anti-glare treatment. Impact resistant.
LIGHT CONDITIONS:
SPORT: Sailing / Surfing / Kite Surfing / Canoeing / Jet Skiing / Fishing
KONTRAST T1000
METAMORPH LENS FOR PRECISION SPORTS
Specifically designed to reduce the amount of blue light that reaches the eye. They improve depth and color perception, and increase eye contrast, enhancing the brightness difference between objects and their backgrounds
LIGHT CONDITIONS:
SPORT: Golf / Padel / Tennis / Archery / Clay Pigeon Shooting
XENONFILTER W05
METAMORPH LENS FOR ROAD
AND OFF-ROAD SPORTS
Designed to adapt to light conditions, limiting the effect of asphalt
reflectance and of dazzling reflections caused by Xeno and Led headlights. They enhance eye adaptation.
LIGHT CONDITIONS:
SPORT: Bike / Motorcycle / Car / MTB / Kart
PHOTOCHROM1C Ph5
PHOTOCHROMIC METAMORPH LENS FOR
ADVERSE WEATHER CONDITIONS
Lenses that darken depending on the light conditions (low – medium – high light) ensuring speed of activation. They offer visual protection from UV-A and UV-B rays and visual comfort for all sports, both indoor and outdoor, that require adaptation to variable light conditions.
LIGHT CONDITIONS:
