Verdict from 100+ user reviews

6 reasons to buy

  • Numerous purchasers find their Oboz Sun Kosi sandals incredibly comfortable.
  • This astonishing hiking sandal has a true-to-size fit, according to several of those who have purchased it.
  • Some users who have hiked in the Sun Kosi many times are impressed with its extreme lightness.
  • About a handful of Oboz Sun Kosi reviews speak of the hiker’s captivating aesthetics.
  • It has a remarkably sticky outsole, claim a few of those who have tested it.
  • Based on a couple of reports, the sandal’s straps are highly adjustable.

1 reason not to buy

  • According to an owner, the Sun Kosi’s toe strap breaks easily.

Bottom line

Fans of Oboz kicks looking for a super-comfy hiking sandal might find one in the Sun Kosi. Adventurers who need a strappy hiker that weighs way less than the competition might also find it in this looker of a product.

That said, this fit-precise gear might scare away customers with the questionable durability of its toe strap. Nonetheless, the Sun Kosi is a competent trail companion, especially for those who can brave its lone mishap.

Tip: see the best hiking sandals.

Good to know

-Dubbed by Oboz as the most versatile sandal in their Freeflow Collection, the Sun Kosi is designed to make backcountry excursions as pleasurable as possible, whether on or off the trail. It is also engineered in such a way that allows hiking enthusiasts to take on daring hikes in safety.

-The Sun Kosi comes with the R-Mat sole unit for underfoot protection and security. Oboz designers made both of its rear and front ends moderately rockered to give wearers sufficient walking comfort on level terrain.

The Oboz Sun Kosi is an open-toed hiking sandal for both male and female adventurers. Wearers can get a personalized fit in it by means of the sandal’s highly adjustable straps.

This sandal-type hiker from Oboz brings surefootedness to the table with its lightweight Canyonlands outsole. It is made of blended rubber, which, according to the brand, is characterized by lasting durability. The low-profile protrusions (a.k.a. lugs) strategically engineered across its surface produce sufficient grip in almost every direction. To give the sandal enhanced flexibility (especially around the arch), Oboz shoemakers gave it a segmented construction.

The Oboz Sun Kosi hiking sandal is equipped with a company-exclusive R-Mat midsole for trail-specific stability and comfort. Its primary ingredient is EVA or ethylene-vinyl acetate—a crack-resistant material known mostly for having high resilience and flexibility. It is built with a high rebound rate and adequate shock absorption to make transitions as safe and efficient as possible.

A non-removable insole called R-Mat Molded Footbed completes Sun Kosi’s midsole equation. Aside from additional comfort underfoot, this cushy component also provides zonal support, especially around the arch section.

This Oboz hiking sandal reins in the foot with its strappy upper made of heavy-duty webbing. It consists of networked straps set through hard-wearing slotted pads for adjustability. The strap at the ankle comes with a ladder-lock buckle made of hard plastic.

  • The Sun Kosi is part of Oboz’s One More Tree drive. This means that for every pair of this hiker sold, Oboz will plant a tree. Fun fact: Since 2007, the company has planted over two million trees.
  • Sandal lovers who also happen to be Oboz patrons might want to try out the Campster. This particular hiking sandal has more instep and forefoot coverage than the Sun Kosi. It also has a closed-toe construction, unlike the featured sandal, giving the foot shoe-like protection at the toe. Note that the strap at its heel can be set to the front to make the sandal a slip-on if desired.


How Oboz Sun Kosi ranks compared to all other shoes
Bottom 42% hiking sandals
All hiking sandals
Bottom 1% Oboz hiking sandals
All Oboz hiking sandals
Bottom 35% day hiking hiking sandals
All day hiking hiking sandals


The current trend of Oboz Sun Kosi.
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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.