Are the fins rubber or plastic please?

They are rubber. I would really recommend them.

I i usually take a size 6(39) should i purchase the medium or large (39-41) in these flippers

I would advise a medium being the best fit.

are they good for improving technique

There's a 2015 review of these fins by Laura Hamel in the online version of SWIMMER athttp://www.usmsswimmer.com/201507/swimbagfins2015.pdfThis review opines: "(Finis Floating Fins) have an excellent balance of flexibility and stiffness and cater to a range of abilities and kicking techniques and drills." On the more general point of long-bladed fins, the article says: "Many coaches like long-bladed fins for beginning swimmers and triathletes and for longer sets that focus on kicking technique. The longer blades slow down the kick and immediately impart a sense of confidence and some real propulsion, allowing newer swimmers to work on specific technique. More important, they encourage toe pointing and ankle flexibility, which is often poor in athletes coming from running and cycling backgrounds and in new swimmers who haven't yet honed their technique."I use my Finis Floating Fins for sea snorkelling.

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FINIS Floating Fin

Product ID: 49247265

Details

Brand
FINIS
Colour
Red / Black
Fit type
Regular
Material
Rubber
Sport
Swimming

🌊Buoyancy lifts legs for perfect form

🔴Color-coded sizes for easy fit

🦵Long blade boosts leg strength

¥1067

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Description

🦵 Elevate your swim game—kick smarter, swim faster!

SMART SIZING - Color-coded fins ensure you pick the perfect fit every time
POWER YOUR KICK - Long rubber blade maximizes propulsion and leg muscle engagement
EFFORTLESS ALIGNMENT - Buoyant fins lift legs, reducing drag and perfecting body position
UNIVERSAL SWIM UPGRADE - Ideal for all ages and skill levels, fresh or saltwater ready
COMFORT MEETS PERFORMANCE - Soft natural rubber delivers all-day swim comfort without chafing

The FINIS Floating Fin features a long, buoyant rubber blade designed to enhance leg strength and speed by lifting the legs to the water surface, improving body alignment and reducing drag. Color-coded by size for easy selection, these fins offer comfort with soft natural rubber and are suitable for swimmers of all ages and abilities in both fresh and saltwater environments.

Specifications

ASIN	B001M0O4Y0
Age Range Description	Adult
Best Sellers Rank	22,954 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 24 in Diving Fins 96 in Training Equipment
Brand Name	FINIS
Closure Type	Pull-On
Colour	Red / Black
Country Of Origin	Malaysia
Customer Reviews	4.4 4.4 out of 5 stars (5,259)
Fit Type	Regular
Global Trade Identification Number	00616323200807
Included Components	Instructions
Item Dimensions L x W	39.7L x 18.5W centimetres
Item Type Name	Swim Fins
Item Weight	1.3 Pounds
Manufacturer	FINIS
Manufacturer Part Number	1.05.037.04
Material Type	Rubber
Model Number	1.05.037.04
Number of Items	1
Number of Packs	1
Product Warranty	30 Day Limited
Sport Type	Swimming
UPC	616323200807
Unit Count	1.0 count

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TrustScore 4.5 | 7,300+ reviews

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¥1067

Duties & taxes included

In stock

Sold byAmazon ChinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to China.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Good experience, but the tracking updates could be better.

2 months ago

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