Mares Avanti Quattro Plus Adjustable Spring Strap Fins 410003SAS  RBL 114403

Mfg Part #: 410003

Mares Avanti Quattro Plus Adjustable Spring Strap Fins

  • Brand new & completely redesigned 
  • Not like most other sites that sell the old discontinued model
  • Channel Thrust Technology system for optimal water channeling
  • Maintaining optimal thrust throughout every phase of the finning stroke minimizes fatigue
  • Bungee strap
  • Soft anatomical foot pocket, with ribbed insole for an improved fit and a dramatically more efficient fin stroke
  • COLORS: Black, Blue with Black accents, Yellow with Black accents
  • SIZE: 6-13

Boots Required - Click Here to Add Boots

Customer Reviews for Mares Avanti Quattro Plus Adjustable Spring Strap Fins:

See the top 20 most helpful scuba gear reviews

Average Customer Review: based on 4 reviews.

Rating: Very good paddle fin
Reviewer: Paul F.  -  View all my reviews
I tried split fins but did not like the fact that they were not as maneuverable as paddle fins. I also considered the atomic blade fins but in the end I went with the Quattro plus by Mares because of price and the very positive reviews. Ive used them 10 times so far and they are easy to put on, they stay on, they dont cause leg cramps and they have plenty of power. I highly recommend these fins.

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4 out of 8 people found this review helpful.

Rating: Great service!
Reviewer: Laura D.
I recently made a purchase for new fins, which I love. But Id like to comment on the service from I called in a few times to ask questions while I was making my desicion and found everyone I spoke to to be very helpful. Most importantly not pushy sales people! Love the service!

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19 out of 27 people found this review helpful.

Rating: Love these!
Reviewer: Katheryn M Hermann  -  View all my reviews
Just got back from Utila and the wind was up. Used for snorkeling this time and they worked great. Stiff but very useful in currant

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10 out of 19 people found this review helpful.

Rating: excellent fins
Reviewer: Jeff Marcum
They work great when paired with the mares boot

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22 out of 50 people found this review helpful.

Questions and Answers for Mares Avanti Quattro Plus Adjustable Spring Strap Fins:

  • Karl:

    Is there in stock to immediate shipping ? Thanks

    Arthur  (Certified Scuba Instructor at

    The Ask the Expert system is an ongoing product information database. For more information about alternate products or for more specific information on individual items (such as serial numbers or product availability) please contact our instructors at

  • Shu:

    my boots is 24.5cm Gull. which size is better for me? (woman)

    Darrick  (Certified Scuba Instructor at

    Hello Shu, you would need the size small mens 6-9/womens 7-10.

  • peter:

    I usually wear "Wear Seac Basic Hd 5mm" size:L to dive .My foot size is 8.5.Now I want buy "Mares Avanti Quattro Plus Yellow",which size I fit well?

    Darrick  (Certified Scuba Instructor at

    Hello Peter, the size you are looking for would be the small size Mens 6-9/Womens 7-10.

  • John:

    The fin is listed as an adjustable spring strap or bungee. How is it adjusted in comparison to a buckle strap fin?

    Kevin  (Certified Scuba Instructor at

    This come with a bungee strap and there are no adjustments. You stretch the strap on and off of your foot. The natural tension of the strap holds the fin in place.

  • Audrey:

    Is the adjustability of these fins due to the elastic strap, or are they adjustable AND have the elastic strap. I am worried that if the adjustability is built in to the elastic only, that they will be too loose or too tight.

    Darrick  (Certified Scuba Instructor at

    Hello Audrey, yes the adjustability in the this strap is in the strap and not the buckles.

  • Jonatan:

    Hi, do you have this fins in Regular size color black in stock?

    Bill  (Certified Scuba Instructor at

    For current stock or availability contact or 800-347-2822

  • JB:

    Which size of these fins would be fit with size 8 boots? I have another fins, Mares X-stream, those fins are size S and fit with my Mares size 8 boots,but I heard from another review, the bungee strap is so tight that some may feel uncomfortable.

    Bill  (Certified Scuba Instructor at

    Order according to your shoe size, if you are in between sizes go up to the next closest size. These are adjustable strap fins which you can tighten or loosen as you need.

  • Ben:

    Hi, The description says this is the new and redesigned model, but it also says it comes with the adjustable strap. Doesnt the new model come with the bungee strap? According to other sites, including the Mares official website, Avanti Quattro Plus do come with the bungee strap, and its also shown in the picture on this site. Which one is it?

    Darrick  (Certified Scuba Instructor at

    Hello Ben, Mares offers the bungee straps as an add-on they have not removed the ABS buckle system off the fins yet.

  • Bansi:

    Are these fins available with bungee straps or I need to buy that separately?

    Darrick  (Certified Scuba Instructor at

    Hello Bansi, these fins already come with the bungee strap installed.

  • William:

    Im on size 7 (245mm) Mares 3mm or 5mm boots, which size S or R should I choose to this Fin?

    Arthur  (Certified Scuba Instructor at

    Hello, you would want to go with the men''s 6-9''s.

  • jay:

    my foot is about 275mm long ,on size US 10.5 what size should i take if dive with 5mm boots ?

    Darrick  (Certified Scuba Instructor at

    Hello Jay, you would be a size regular 9-11 mens.

  • AJ:

    What is the length of these fins? Im trying to match them with a snorkel back pack.

    Arthur  (Certified Scuba Instructor at

    Hello, about 24"

  • Maureen:

    Is there a huge performance difference between the Mares Avanti Quattros and the Avanti Quattro Plus?

    Bob  (Certified Scuba Instructor at

    The difference in negligible.

  • Paul:

    I wear a size 11 shoe. Should I get the 9-11 or 11-13 size Quattro fin? I will be using a bare trilam tech dry suit with attached boots.

    Darrick  (Certified Scuba Instructor at

    Hello Paul, the size I would suggest for you is the size 11-13. That size will fit your current boot system you have on your dry suit.

  • WaiShing:

    Hi, I wear size 9 (265mm) 5mm shoes. What size should i choose? S or R?

    Darrick  (Certified Scuba Instructor at

    Hello Wai, if you are more 8.5 to 9 you want to get the size small. If you are more 9 to 9.5 you want the size regular.

  • Bob:

    Hi, looking for a decent set of free diving fins. diving in shallow(5-8 ft max) water so dont need the long blade style.Im a size 13 wide, waters cold here(48F) so Im wearing a 5mm sock. Would these fins fit my large feet with a boot or sock? Can you recommend a pair that would? thanks!

    Arthur  (Certified Scuba Instructor at

    yes you would want the L/XL''s

  • Alan:

    My husband wears a size 14 shoe. He did try on the extra large when we were at divers direct and it fit. You website says L/XL and up to size 13. I cant imagine that they would have a different size than you but we dont want to order and then not have them fit. So, what Im asking is will they fit a size 14?

    Darrick  (Certified Scuba Instructor at

    Hello Alan, yes the size L/XL is designed to fit size 11-13 mens. If your husband tried these on in the L/XL size and they fit than these would work for you. They would be the same sizes as the ones you tried on at your local dive shop.

  • Marcela:

    Hello, I have two questions: 1. I have the previous model (with the ABS buckle system), will the bungee strap adapt to them? 2. What is the lifespan expectancy of this fins? I take good care of mine, but dont know if they are ready for a replacement... have had them for about 16 years. Thank you!!!

    Bob  (Certified Scuba Instructor at

    They could live for ever with care, which it sounds like you''ve given them. The Bungee Straps will fit on these fins nicely.

  • yoontaek:

    Hi~~ Is black size 9-11 in stock?

    Bob  (Certified Scuba Instructor at

    As this is an ongoing informational database and inventory can fluctuate daily, please contact our instructors at for stock and availability questions.

410003 - Avanti Quattro Plus Adjustable Strap Fins

Restyling of a legend, comes equipped with the patented Mares bungee strap

• Increased efficiency with the use of new hi-flex material
• Four channels for four times the thrusting power
• Bungee strap

The new Avanti Quattro + fin exceeds the established performance of the traditional model thanks to the use of new materials that optimize efficiency. Greater responsiveness and thrusting power with an even more attractive look. New Bungee Strap is provided standard.
Proven Channel Thrust technology makes the fin versatile and ideal in all diving conditions. The stabilizers improve stability, eliminating ankle twisting phenomena. The anatomical foot pocket conveys more power to the blade.

Product Details

Code: 410003
Colors: yl, bl, bk, wh, lm, fl
Sizes: S · R · XL
Blade: Cm 38
Weight: Kg 0.90
Material: Thermoplastic rubber/ Tecralene®

Product Features

Channel Thrust: Soft longitudinal inserts allow a controlled deformation of the fin blade while kicking. This channel shape moves a greater amount of water resulting in more thrust for the same effort. Mares design is inspired by marine mammals.

Latest development in Channel Thrust is the Superchannel. The blade is designed with a large flexible central Superchannel propelling water-flow more effi ciently down the fin blade instead of letting it spill over the sides for optimal performance and minimal diver effort. The limiting factors in traditional open heel foot pockets are their weight and the “parachute effect”. When finning, water gets into the space between the bootie and the foot pocket, creating drag like the air in a parachute.

The perforations prevent this and have the additional benefit of making the foot pocket very soft and flexible. Furthermore, the suction effect which can make doffing of the fins cumbersome, is now forever a thing of the past.

ABS Plus Buckles: These unique, patented buckles are the most simple and easy to use buckles available in the market. It only takes one quick movement to easily open or close the buckle, even when wearing thick neoprene gloves. The double button release prevents the buckle from accidentally opening.

Open Heel Foot Pockets: The open heel foot pocket is designed to accommodate dive boots with a sole, and to offer excellent adherence between the boot and the foot pocket in order to transfer all the force exerted by the leg to the blade, without sacrificing yield yet still ensuring superior comfort. The lower section of the foot pocket is longer, in order to better transfer power to the blade and minimize the risk of cramping. In addition, the inside of the foot-pocket features internal ribbing to improve fit and stiffen the sole.

View all Mares Fins

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