SPF Is for Sunscreen, UPF Is for Everything Else
Most of us are familiar with SPF, or Sun Protection Factor. It’s the number on our sunscreen bottles that tells us how well we’re protected from UVB rays, the kind that cause sunburn. But what about our clothes? That’s where the Ultraviolet Protection Factor (UPF)
comes in. UPF is a rating for fabrics that measures how much solar radiation—both UVA and UVB rays—it blocks. Unlike SPF, which is about how long you can stay in the sun, UPF is about how much gets through. For example, a garment with a UPF 50 rating allows only 1/50th, or about 2%, of the sun’s UV radiation to reach your skin. This provides a consistent, physical barrier that doesn't sweat off or require reapplication every two hours. Given that a standard white cotton t-shirt might only have a UPF of 5 to 7, the difference in protection is significant.
India's Sun Is Not as Forgiving as We Think
There's a common and dangerous myth that India’s melanin-rich skin tones provide all the sun protection we need. While melanin does offer some natural defence, it is far from a complete shield. The reality is that Indian cities from Delhi to Chennai regularly experience UV Index readings of 11 or higher, a level the World Health Organization classifies as "extreme". Under this level of exposure, skin damage can occur in minutes. While India's skin cancer rates have been historically lower than in Western nations, recent studies show a concerning upward trend. This is linked to changing lifestyles, increased time spent outdoors, and occupational exposure for those in agriculture and construction. Relying on a thin kurta or a light shirt for protection is a gamble. That fabric might feel cool, but it offers minimal defence against the relentless daily dose of UV radiation.
Why Our Shopping Habits Need a Reality Check
For too long, our clothing choices have been dictated primarily by style, comfort, and cost. We prioritise breathable cottons for the heat and humidity, but rarely question their protective qualities. This needs to change. The conversation around shopping should evolve to include sun safety as a non-negotiable feature, not a niche requirement for trekkers and athletes. When we walk to the metro, ride a two-wheeler, or simply run errands, we are accumulating sun exposure. UPF-rated clothing is not specialised gear; it is sensible daily wear. A lightweight, breathable jacket or shirt with a UPF 50+ rating offers more reliable protection than a scarf draped loosely over the arms or sunscreen that was applied hours ago. The lack of prominent UPF labelling in most Indian stores isn't because the technology doesn't exist; it's because consumers haven't demanded it.
How to Become a Smarter Shopper Today
The power to change the market lies with us, the consumers. The first step is awareness. Start looking for the UPF label when you shop for everyday wear, especially for items you’ll wear outdoors. A rating of UPF 30 is considered 'very good' protection, while UPF 50+ is 'excellent'. If a garment doesn't have a label, consider the fabric's characteristics. Darker colours and tighter weaves generally offer more protection than light-coloured, loose-fitting fabrics. A dark denim shirt, for instance, naturally has a very high UPF. Synthetic fibres like polyester and nylon are also often more effective at blocking UV rays than natural fibres like cotton, unless the cotton has been specially treated. Ask questions. Email brands. Create the demand. By signalling that UPF is a feature we value, we encourage manufacturers to make it a standard.
