Salomon Sentry Pro OTG Sigma Photochromic

The Sentry Pro OTG Sigma Photochromic is built specifically for skiers and riders who wear prescription glasses. The frame has extra internal depth and side notches to sit comfortably over your glasses without pressure, so you're not choosing between sight and comfort.

Why we rate it

The SIGMA™ photochromic lens works across all light conditions, shifting its tint as the day changes. It uses colour-amplifying technology that boosts contrast and definition, which means you see texture and contours better in flat light and variable snow. The cylindrical lens keeps optical distortion minimal, so your vision stays true even at the edges.

Ventilation is built in across the full perimeter of the frame: fresh air flows in constantly, pulling moisture out to stop fogging before it starts. The triple-layer foam has a velvet top and sits soft against your face. The wide silicone-backed strap grips your helmet without slipping, and dual-slide buckles let you adjust length in seconds—useful when you're switching between helmets or pulling them on in a hurry.

Who it's for

Skiers and riders wearing prescription glasses who want true over-the-glasses fit without bulky compromises. Works across all terrain and ability levels, from cruising groomers to exploring the whole mountain. The large frame size suits most faces; the extra volume is the point.

Key features

• SIGMA™ Photochromic lens — Adapts to light all day, with colour amplification for contrast in variable conditions
• Over-the-glasses design — Extra frame depth and side notches let glasses sit inside without pressure or gap
• Full perimeter airflow — Fresh air flows in and moisture pulls out constantly; ventilation foam prevents fogging
• Cylindrical lens — Minimal optical distortion across the entire field of view
• Triple-layer face foam — Double-density PU with velvet top for comfort and fit
• Wide silicone strap — Grips your helmet; dual-slide buckles for quick adjustment
• Interchangeable lens — Easy quick-change system; one Sigma Photo Sky Blue lens included

Fit and feel

Large frame with increased depth to sit over prescription glasses without pressure. The thermoformed face foam conforms to your face over the first few runs. Frame is durable and flexible; the wide strap sits stable on any helmet. Weighs 135 g.