Verdict from 100+ user reviews

6 reasons to buy

  • Droves of verified users find the Merrell Siren 3 Waterproof as a remarkably comfortable shoe for hikers.
  • A majority of female adventurers are enthusiastic about its effective waterproof liner.
  • More than a bunch of shoppers are raving about the versatility of this Merrell product for outdoor endeavors and urban environments.
  • According to countless customers, the Siren 3 Waterproof’s lightweight design is outstanding.
  • Based on a couple of consumer reviews, its arch support is amazing.
  • A minority of outdoor enthusiasts are glad to report that this hiking shoe has no break-in period.

3 reasons not to buy

  • Several buyers say that the Merrell Siren 3 Waterproof has subpar cushioning.
  • A few wearers find its toe box too narrow than they expected.
  • According to some purchasers, the shoe’s upper isn’t breathable.

Bottom line

Women who value comfort and protection from the elements may find this hiker a useful option for outdoor excursions. Its versatile design and lightness also garner praise from those who have worn this Merrell hiker.

However, there are those who lament the lack of cushioning of this shoe, especially when worn on uneven terrain. Overall, the Merrell Siren 3 Waterproof may impress female outdoor lovers with its strengths, granted its insole is replaced with a more cushioned one.

Tip: see the best hiking shoes.

Good to know

The Siren 3 Waterproof is a below-the-ankle outdoor shoe designed by Merrell to give female hikers comfort and performance during single-day trips. An M Select Dry laminate is integrated into its mesh and thermoplastic polyurethane (TPU) upper for water protection. Moreover, it is treated with the brand’s M Select Fresh technology to keep the user’s foot fresh during an adventure.

The footgear’s Q Form 2 dual-density ethylene-vinyl acetate (EVA) midsole yields gender-specific cushioning to women. Its Vibram Megagrip outsole, meanwhile, supplies outdoor lovers with surefootedness on virtually all types of terrain.

The Merrell Siren 3 Waterproof is a low-top day hiking shoe made for women. It is equipped with a conventional lacing system, which allows wearers to achieve a secure and personalized fit. A Hyperlock molded TPU counter is positioned in the rearfoot area to keep the heel from moving in its place.

This waterproof shoe for hikers sports a Vibram Megagrip outsole for ground adherence. It is made of a specially formulated Megagrip compound, making it durable and abrasion-resistant. Its profile is filled with 5mm-deep rectangular lugs to render multi-directional traction on both wet and dry terrain. The sole is furnished with a heel brake and a grooved rearfoot area for extra stopping power when tackling downhill conditions. Its front section covers an area of the forefoot zone to protect the user’s toes from stubbing.

The Merrell Siren 3 Waterproof comes with a proprietary Q Form 2 dual-density midsole made of EVA foam. Its construction comes with a heel-centering technology that delivers a cushioned ride specific to women. It works in tandem with a patented Kinetic Fit Tri insole to deliver extra cushioning and underfoot comfort. The contoured design of this removable component also offers support to the foot’s three major arches.

The Merrell Siren 3 Waterproof features an upper made of mesh fabric, making it a lightweight shoe for hikers. It is reinforced with TPU overlays and a rubber rand to optimize durability. The latter also grants added protection from various trail dangers. A patented M Select Dry membrane is integrated into the upper to prevent water intrusions. Moreover, its design also allows for excess moisture and heat to pass through.

This Merrell outdoor shoe for hikers uses a Hyperlock molded TPU counter for heel support. Its lacing system comes with a series of webbing loops to help the wearer manage the footgear’s fit. A pull tab is found at the back of the collar to facilitate easy on and off.

- Buyers who require ankle coverage and sturdiness may want to consider the Merrell Moab 2 Mid GTX.


How Merrell Siren 3 Waterproof ranks compared to all other shoes
Bottom 17% hiking shoes
All hiking shoes
Bottom 13% Merrell hiking shoes
All Merrell hiking shoes
Bottom 15% day hiking hiking shoes
All day hiking hiking shoes


The current trend of Merrell Siren 3 Waterproof.
Compare to another shoe:
Paul Ronto
Paul Ronto

Over the past 20 years, Paul has climbed, hiked, and ran all over the world. He has summited peaks throughout the Americas, trekked through Africa, and tested his endurance in 24-hour trail races as well as 6 marathons. On average, he runs 30-50 miles a week in the foothills of Northern Colorado. His research is regularly cited in The New York Times, Washington Post, National Geographic, etc. On top of this, Paul is leading the running shoe lab where he cuts shoes apart and analyses every detail of the shoes that you might buy.