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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
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Description
Seac Pinne BM 30 FinThe material of the BM30 fin A light and reactive technopolymer, unique to date, which offers performance similar to carbon fibre based composite, while eliminating the well known problem of material fragility. The technopolymer used is so elastic and has such a high shape memory that in an absurd demonstration if we were to look at the blade after rolling it up on itself, once released it would still have its initial geometry, without any permanent
The material of the BM30 fin
A light and reactive technopolymer, unique to date, which offers performance similar to carbon fibre-based composite, while eliminating the well-known problem of material fragility. The technopolymer used is so elastic and has such a high shape memory that - in an absurd demonstration - if we were to look at the blade after rolling it up on itself, once released it would still have its initial geometry, without any permanent structural deformation that could compromise its performance.
The geometry of the BM30 blade
The blade of the SEAC BM30 fins is inclined by 30°. This more accentuated angle is ideal both to facilitate surface finning and to support the natural inclination of the ankles when diving. In addition, the ultra-thin, differentiated profile creates optimal flexion. The small stabilisers placed at the end of the blade, at the point of greatest water flow, prevent the fin from drifting sideways without compromising the correct flexion of the blade.
The material of the BM30 foot pocket
Like the successful Motus series, the BM30 foot pocket is made of two different materials, a stiffer one on the sole for stability and a softer one on the upper for maximum comfort during prolonged use
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 4
ALL SEASON IS TOO WARM!
Size: King, Style: All-Season
I got the King, All Season, to squeeze into a Queen duvet for extra floof and it's sooo cozy. Highly recommend.
I redacted 1 star though because although it says All Season, the amount of down in here feels like it's for winter. The first night I used it I woke up dripping in sweat. It's currently March, I live in Los Angeles area, hitting about 75° weather outside rn, but I sleep with AC full blast at night (usually hit about 64 when I wake up). I can't sleep with it, I'll need to buy the "cool" one, and hope that isn't tooo thin.
Don't get me wrong, it's a great insert, but holy hell, it's too heckin' warm. I saw someone else mention it and wish I had honed in on their comment. I don't wanna return it as it was used, so I'm stuck with it now.
*UPDATE*
I am back because I also bought the "Cool" blanket as well after experiencing the heat of the all season and it too is also too hot for me. I've had a duvet before but I guess not filled to the capacity of these blankets. If you're a hot sleeper maybe look elsewhere?
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Reviewed in the United States on March 12, 2026
★★★★★ 5
Buy this instead of the ‘brand name’ one
Size: Twin, Style: Warm
Tl:DR:
Buy it, it’s super cheap, better than the one I paid 2x the price for and soft as it can get, and it really is a ‘Winter comforter’.
This review is going to sound like I got paid off for it but I actually didn’t. I bought another comforter prior to this one, paid close to double of this one and that the ‘on sale’ price, and it is trash compared to this Amazon basics one. Both claim to be thick warm comforters but I can literally stack two of the other brand and maybe they’d be almost as thick as the Amazon one. I only bought this one because the other ‘winter’ one I bought was so thin and flimsy I figured adding another ‘cheapie’ one might make me not freeze to death. As soon as I arrived I noticed that this Amazon one was WAY thicker, nicer looking, softer and warmer than the old one. Just to try it out I stacked both of them together to see if I wouldn't freeze to death like I was doing with the old ‘expensive’ one: five minutes in and I was sweating. That’s all it took, I immediately removed the duvet cover from the old one, switched it to the Amazon one and threw the old one somewhere where I couldn’t see the money I had wasted, and yes the Amazon was warmer and softer even WITHOUT the duvet cover. I’m probably going to get the light version for when fall hits and I don’t quite need the heavy one yet. Buy it you won’t regret it and hey it’s Amazon brand so if you don’t like it they’ll take care of you, but I HIGHLY doubt you won’t love this thing.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Great duvet insert
Size: King, Style: Light
Perfect duvet insert. I got a pretty expensive duvet to cover this and they worked great together. The fit was perfect and I didn’t feel like the duvet was smaller than its cover. This was a cheap option that keep us warm while not being too think. This product is also breathable and recommend if you live in a place that transitions from hot to cold often.
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Reviewed in the United States on April 6, 2026
★★★★★ 5
Great mid-weight comforter
Size: King, Style: Light
Great comforter, especially for the price. I put it in the dryer for a bit when I first got it and it became nice and fluffy. Perfect mid-weight duvet.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Totally love them
Color: Dark Tortoise, Size: 55-18-140
Super cute a little bigger than I expected but still adorable and trendy!
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Reviewed in the United States on January 17, 2026