Updates to Merrell Siren 3 Mid Waterproof

  • Another reliable boot in Merrell's Siren Collection, this shoe features the M Select DRY impermeable membrane that seals water out and lets moisture escape.
  • It has a breathable mesh upper with TPU overlays for extra strength and durability. For its cushioning system, this boot makes use of the Q Form dual-density midsole with heel-centering technology for stability and comfort. 
  • This shoe is also powered by Vibram Megagrip sole that bites into different surfaces.

Size and fit

This mid-top hiker is constructed using a gender-engineered last to make sure that it fits a woman's foot perfectly. Its upper features padded tongue and collar, and an elastic mesh for a glove-like fit. The Merrell Siren 3 Mid Waterproof women's boot has a traditional lacing system with hook and webbing loops for a secure fit. There's also a pull tab at the back of the collar that helps get the foot into or out of the boot easily.

Outsole

The Siren 3 Mid WP has the Vibram Megagrip outsole that is designed for hiking in all types of terrain. It has an aggressive lugging with a dept of 4.5 mm so it bites into the mud, loose dirt, and soil really well. The grooves on the heel help keep the boot stable when traversing uneven grounds.

Midsole

Besides being shorter and narrower, women's feet tend to have lower insteps and slipper heels than men's. Additionally, women's Q-angle (the area just below the hip) leans on a slightly larger angle than men's, which increases pressure on the hips, knees, and back. This often results in pain or discomfort when walking. Taking this into consideration, Merrell has designed the Q-Form midsole which is specifically intended to deliver cushioning and support for female feet.

The Q-form midsole features a firm and supportive area to keep the foot centered, a second supportive area to keep it centered while the foot is lifted, and a soft region for cushioning as the wearer pushes off and takes another step. There's also cushioning in the toe area to help distribute the wearer's weight and pressure as she walks.

Additionally, the Siren 3 Mid WP comes with the Kinetic Fit Tri Removable insole that delivers comfort and arch support.

Upper

This boot features a mesh and TPU upper with a padded collar and bellows tongue for keeping debris out. Lining the shoe interior is the M Select DRY impermeable membrane that prevents water from getting in. Sweaty feet are a common thing during long hikes, especially in the summer. Luckily, the Siren 3 Mid is treated with M Select FRESH antimicrobial agents that reduce shoe odor.

Furthermore, this boot has the Hyperlock molded TPU heel counter that keeps the heel in place, thus, preventing blisters or pain caused by friction or heel slipping. Completing the upper is a lace-up closure with hooks and loops for a secure fit.

Nice to know

-The Merrell Siren 3 Mid Waterproof is a vegan-friendly product. 

Popularity

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Author
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.