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About Hollis F1 Open Heel Bat Dive Fins

The Hollis F1 Bat" Fins give Power without Compromise. The Hollis Fin Blends Graceful Movement, Power, and Bulletproof Construction. Meet the New Standard in Diving! The Hollis Open Heel Bat" Fins use Classic Vented Fin Construction with New Age" Technologies. Fins are equipped with Spring Heel Fins Straps with Easy-Grip Heel Tabs and Generous Foot Pockets for fast Donning and Doffing. Heel Tab Loops can also be used to Hang Fins for Drying or Storage in a Dive Locker. The Spring Straps have Multiple Strap Mounting Positions for a Fine Tuned Fit. The Strap Mounts are also Angled-for-Comfort and a Better Transition-of-Power.

Like the Original Vented Fins the F-1 Bat" Fins are constructed from High-Grade, Heavy-Duty Rubber for Exceptional Strength and Durability. The Vented Blade Design with Unique Channel on the Blade Tips Reduce Stress while Accelerating Water Over-the-Blade and Focusing the Flow-of-Water for added Power. The Fins are available in 3 sizes of Regular, X-Large or 2X-Large and come in all Black or Black with Yellow Tips. Fins are covered by a 12 month limited warranty.

Warranty Information

This product has a limited warranty of 12 months.


Hollis F1 Open Heel Bat Dive Fins Features

  • Power without Compromise
  • Fin Blends Graceful Movement, Power, and Bulletproof Construction
  • Material: High-Grade, Heavy-Duty Rubber
  • Exceptional Strength and Durability
  • Classic Vented Fin Construction with New Age" Technologies
  • Vented Blade Design with Unique Channel on the Blade Tips
  • Vents & Channels: Reduce Stress, Accelerating Water Over-the-Blade
  • Vents & Channels: Focus Flow-of-Water for Added Power
  • Spring Heel Fins Straps with Easy-Grip Heel Tabs
  • Heel Tab Loops: Hang Fins for Drying or Storage in Dive Locker
  • Generous Foot Pockets
  • Straps & Foot Pocket: Easy Donning and Doffing
  • Multiple Strap Mounting Positions for a Fine Tuned Fit
  • Strap Mounts are Angled-for-Comfort and Better Transition-of-Power
  • 3 Sizes: Regular, X-Large or 2X-Large
  • Color Choices: All Black or Black with Yellow Tips
  • 1 Year Limited Warranty

Hollis F1 Open Heel Bat Dive Fins Customer Reviews Powered by TurnTo®

Review Summary


(based on 40 reviews)


of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Most Liked Positive Review


Great All around fin

First let me say that comments such as "unbelievably heavy" are in my humble opinion, unbelievably stupid. If you need to wear weight when you dive and if weight on your feet will help to trim you into a more streamlined configuration, then you NEED a pair of heavy fins. If you tend to trim head up, by all means obtain the lightest pair that suits your swimming style. One of the silliest things I have ever seen is a dive buddy of mine who insists on wearing her ultra-light fins with 5-lbs ank...

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Most Liked Negative Review


Way too heavy!

These fins are UNBELIEVABLY heavy! Every diver in our group made fun of them. Great idea, but, just not these! Would suggest what we did our second go around and buy GIANT size regular fins (from Leisure Pro) to go over our dry dive boots. They fit great over the boots and were not anywhere near as heavy. Please do not waste your money!!!

Reviewed by 40 customers

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Great alternative to Scubapro Jetfins


from Taipei, Taipei, DE

The F1 is a fin that plays in the same league as the Scubapro Jetfin. I own a pair of each, and I like different aspects of both. Application: Like Jetfins, I find F1s too negative for single-tank wetsuit diving (which is clearly not the intended field of application!), but they trim me out just nicely for anything from double AL80s (3-mm wetsuit +2/5 mm hooded vest, aluminum backplate, no weights) up to heavier loadouts (drysuit, multiple stages, CCR). Comparison with Jetfins: The main differences compared with Jetfins are the foot pocket, length, and weight distribution. I find that the F1 foot pocket is a better ergomomic design that envelops a greater portion of my foot and gives me better leverage than I get with Scubapros. F1s are also longer by several inches – doesn't matter much in open water, but it's a slight disadvantage in confined spaces like wrecks and caves. The fin's weight distribution is heavily biased toward the foot pocket, which makes the F1 unexpectedly agile for its size and weight when it comes to precision finning techniques. Do not buy if: There are much better fins available for tropical wetsuit diving in a single tank (Mares Avanti Quattro, OMS Slipstream, Dive Rites). Also, do not buy this fin if your preferred method of propulsion is flutter kicking, or if you need to kick constantly to make up for deficiencies in your trim or buoyancy control. Or better, do buy these fins and let the leg cramps light your way to proper technique. Summary: The F1 is my favorite fin for OW technical diving and a close contender for wreck and cave. Love the foot pocket, and I only wish the blade was a little shorter and wider.


Great Fins


from San Jose, CA, US

Wonderful alternative to jet fins, if you want the same power and durability without having to purchase spirit spring straps. Everyone I know uses jet fins but I personally can't because they cause me pain on the upper of the foot box. I really enjoy that these offer a deeper more stable fit in the foot box. Will likely buy again. Another plus is that they are slightly negative so they help for people who suffer from floaty feet!


Great technical fin


from Little Rock, AR, US

A great technical fin from Hollis with solid construction, worth the price.


Hollis F1 Fins


from Herndon, VA, US

Excellent fins for any type of diving, but defintely my go-to fins particularly with the weight requirements of technical diving. Already had a larger size pair for drysuit diving, and had the Hollis F-2s for wetsuit technical, but the F-2s just didn't provide the required thrust to meet the needs odd a of technical diver bearing a heavy load. Purchased a smaller sized F-1 fin set for wetsuit technical and they did the trick! Love these fins! They are not overly heavy and have great thrust and agility for helicopter turns, etc. Highly recommended!


Fantastic Fins!


from Toronto, ON, CA

Starting with their look they are beatifully styled, easily the 'cutest' fin that I have ever seen. But more importantly is their functionality. I bought these a couple months ago, and have about 12 dives in them, boat dives, shore dives and heavy river current dives. I needed a versatile fin for these wide-ranging Ontario dives that I find myself doing. These fins fit the bill perfectly! They are heavy, but not crazy heavy like the jet fins, and I thought my legs might hurt using them, but I haven't gotten fatigued yet, and I have had some lengthy kickouts with them. My other pair of fins that I love are the mares avanti quattro plus in black, but these F1s have quickly replaced those as my fin of choice. Sizing is pretty right on, I would say, but if you are using a drysuit boot, go up a size more than you thought you would need. I bought the XL but still find it getting stuck on my boots, so I appy a little armor-all on the pocket interior before dive weekends to successfully make the boot easier to get out of the pocket.

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Questions & Answers Powered by TurnTo®

Questions about this item:

Shopper  Why Did You Choose This?
JOSHUA H  I wanted a fin in 2XL for my drysuit boots and these were on sale. I love them so much I would have paid more for them.
BRYN J  Excellent reputation as a good tech diving fin.
JAMES H  What size are these?
Frank L  There are three sizes for this fin. Click on "Select Size".
Gregg L  Hi I wear a size 12.5 and dive in dry suit what size would you recommend XL or XXL in the Hollis Batfin?
MICHAEL T  I wear size 12 shoes and wear the XL fins. I think I would recommend this size for you. From Hollis site: XL: 10-12 XXL: 13-15 Or you could buy both sizes and return the one that didn't work.
Joe S  I would use a XXL if you are using vulcanized rubber boots lined with Neoprene. The XL may work if you are using a canvas overboot. 12.5 would be borderline and depend on the width of your foot.
RAJI A  I had the XXL and had to sell them as they were too big form me. I am size 10.5 shoes. I am happy with just XL and it works fine with dry suit and boots. I suspect that will 12.5 you may need XXL
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