Joe E.
wrong product was sent
wrong product was sent, beanie in wrong color,

HAVN combines material science and advanced performance fabrics to create clothing that blocks 99% of UV and wireless radiation and supports your wellbeing and long-term health. Discover the first protective apparel you’ll actually want to wear.
HAVN (getlambs.com) has 260 customer reviews on Five Star Index, with an average rating of 3.7 out of 5.
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Claim this listingClothing & Underwear · San Luis Obispo, California
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Showing 10 reviews with 3 stars · Clear filters
Joe E.
wrong product was sent, beanie in wrong color,
Steven R M.
this company does hype very well and i bought into it. the advertising etc. bravo.the hat didn't do anything except matt my hair down.
S. H.
The hat pops off of my head. I suppose that means that it’s too small?
Serina H.
I think it is made well, its just too small and tight on my head.
Response from HAVNOct 14, 2026
Glad the build holds up, Serina, but a hat that's too tight isn't a hat you'll wear. Email [email protected] and we'll get you into a size that fits or refund you.
Karl N.
Too EXPENSIVE, it is so small that it pops off my head. It doesn't fit very good too small
Response from HAVNOct 13, 2026
Sorry the fit missed, Karl. If it's popping off, you likely need a different style rather than a different size. Email [email protected] and we'll swap you into something that actually stays on, or refund it. On price, the silver fiber knit is the expensive part, but none of that matters if the hat doesn't fit.
Mark S.
Its hard to keep it looking nice once you wash it it looks old. and wrinkly. Gets to be a sloppy looking cap. I guess its working don't really feel a difference.
Response from HAVNOct 13, 2026
Useful feedback, thank you. Cold wash and reshape while damp, never the dryer, keeps the shape much longer, but a cap going sloppy after a few washes is still ours to fix and we're passing it to the product team. On whether it's doing anything, the easiest proof is an EMF meter: take a reading next to your router, then put the cap over the meter and look again.
Lauren K.
The beanie is an odd fit on my big head. I think that a slouchy beanie would be better, but I don’t think Havin has one.
Response from HAVNOct 13, 2026
You're not the first to ask for a slouchier cut, Lauren, and it's on the list. In the meantime email [email protected] and the team will check what we have that sits better on a larger head, or refund you if nothing does.
PM
The delivery was a problem, but once solved and the beanie arrived, my daughter reports it is comfortable and good-looking. I'm waiting to hear when she feels it is helpful as a health aid for all the electronics in her environment.
Response from HAVNSep 15, 2026
Thanks for the fair review. The delivery shouldn't have been a problem and we're sorry it was, glad it got sorted. Good to hear your daughter finds it comfortable. If it turns out not to be right for her, our return window still applies: just email [email protected].