Size Matters

Same face. Different fit. Drag the slider to compare our 139mm Regular and 165mm XXL Classic frames.

Classic Frame

Regular 139mm

Classic Frame

XXL 165mm

Find your fit

Enter your head circumference to find your suggested size.

How to measure

Wrap a soft tape measure around your head, just above your eyebrows and ears. Keep it level and snug without pulling tight. Measure twice and enter the result in centimetres.

Enter centimetres, using a whole number or one decimal place.

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Use this section to explain a set of product features, to link to a series of pages, or to answer common questions about your products.

Model wearing 165mm XXL Classic oversized blue light blocking glasses in Black Matte, offering a stylish and comfortable fit for big heads.

Prescription glasses for big heads 

Choose clear lenses for everyday wear or prescription sunglasses for brighter days, in wide frames up to 165mm.

Unsure about the fit? UK prescription customers can request up to two frames to try at home before ordering their lenses.

Shop prescription glasses Shop prescription sunglasses

FAQs

More questions? Visit our full FAQs or get in touch.

What size sunglasses do I need for a big head?

Our 155mm XL and 165mm XXL frames offer extra room for larger heads and wider faces. We also have 145mm Large and 139mm Regular options in selected styles. Use Find your fit above or our Fitting Guide for a suggested size—if you’re unsure, we’re happy to help.

 Are Faded Days sunglasses polarised?

Yes—our range includes polarised sunglasses with UV400 protection. Polarised lenses help reduce reflected glare, while UV400 protection shields your eyes from UVA and UVB rays. Check your chosen product’s description for its lens details.

 Can I get prescription glasses for a big head?

Yes—we offer prescription glasses and prescription sunglasses in selected wide frames, including our extra-wide 165mm XXL size. Choose clear lenses for everyday wear or prescription sunglasses for brighter days. UK prescription customers can also request our frame try-on service to check the fit before ordering.

 Do you offer free UK delivery?

Yes—standard tracked delivery is free on UK orders. A next-day upgrade is available for eligible destinations, although prescription orders need additional time for lens production. For international delivery options and charges, check your destination at checkout or visit our Shipping Policy.

 Can I return sunglasses if they don’t fit? 

Yes—UK orders for non-prescription sunglasses can be returned within 14 days of delivery for a refund or exchange, provided they’re unused and in their original condition. Return postage is your responsibility. Prescription and international orders have separate terms, which you’ll find in our Returns Policy.

Sunglasses for big heads and wide faces 

If standard sunglasses feel tight, a wider frame could make all the difference. Faded Days UK specialises in sunglasses for big heads and wide faces, with 155mm XL and 165mm XXL frames offering extra room. Smaller sizes are available in selected styles.

Explore classic, aviator and sport designs, with polarised options and UV400 sun protection. We also offer prescription glasses and prescription sunglasses in selected wide frames.

Use our Fitting Guide for help choosing your size, or contact us for personal advice. We’re happy to help you find a style and fit that works for you.