I’ve worn Smartwool socks for years while hiking and skiing, but I wanted to know if the brand’s clothing could handle the same level of adventure.

I tested a Smartwool Active Ultralite Short Sleeve Tee and Active Lined 4-inch Shorts in humid South Africa, on safari in Zimbabwe and the tee during a multi-day trek along Peru’s Salkantay Trail.

The short answer: The lightweight merino blend handled heat, sweat, repeated wear and international travel impressively well.

Updated October 9, 2026

What I Tested

• Smartwool Women’s Active Ultralite Short Sleeve Tee in guava pink

• Smartwool Women’s Active Lined 4-Inch Shorts in a multicolor print

• Size: Medium in both pieces

I typically wear a size 4–6 but ordered a medium for a looser fit. That was the right decision, especially for the shorts. I have athletic thighs, and running shorts can be tricky.

These were an immediate yes.

The exact colors I tested may no longer be available, but Smartwool still offers updated versions of its Active Ultralite tops and Active Lined running shorts.

Smartwool Active Ultralite Tee Fit and Fabric

The Active Ultralite Tee blends merino wool with TENCEL Lyocell. The combination is lightweight, breathable and soft against the skin. Most importantly, it never felt itchy.

The fabric helps regulate temperature, manage moisture and resist odor. Those qualities are particularly useful when you have limited luggage space and need to wear the same shirt multiple times.

The tee also packs down surprisingly small. Mine barely took up any room, which matters when trekking with strict baggage limits.

I’m not normally a pink gal, but I loved the guava color. The bright pop of color also looked great in trail pictures.

Testing the Outfit in South Africa

I first wore the tee and shorts while walking beside the Indian Ocean during a two-night stay in Durban, South Africa. The weather was warm and humid as I explored a nature preserve near my hotel. Even with the high sweat factor, the clothing never felt heavy or dripping wet.

While walking back to the hotel, crashing waves soaked me. Both pieces dried in approximately 10 minutes in the late-afternoon sun. That quick-drying performance made the outfit a winner for beach vacations, workouts and warm-weather adventures.

The shorts have a comfortable merino-blend liner and a hidden zippered pocket large enough for a key or credit card. I would prefer the pocket on the back, and there isn’t enough space for a phone. That is my only real complaint.

Wearing the Tee on Safari

I also wore the Smartwool tee as a base layer during a safari in Zimbabwe. The pink guava isn’t the earthy color you should wear on safari, but as a base layer it was great.

Safari temperatures can swing dramatically between chilly morning game drives and warm afternoons. The lightweight fabric worked well on its own and under additional layers.

It also held its shape and stayed comfortable after multiple wears, a big plus when laundry opportunities and luggage space are limited.

Testing the Tee While Trekking the Salkantay Trail

The toughest test came during my seven-day, six-night Peru adventure, including four days of trekking along the Salkantay Trail.

I packed only two T-shirts. The Smartwool tee earned its limited space in my trekking bag.

I wore it on multiple days through changing temperatures, intense sun and sweaty climbs. It stayed soft, retained its shape and never developed a serious stink factor.

For the trek, I chose dedicated hiking shorts instead of the Smartwool running shorts. The Active Lined Shorts work better for running, workouts, beach walks and casual warm-weather adventures than rugged trekking.

Are Smartwool Clothes Good for Travel?

Yes, especially when packing light.

The Active Ultralite Tee is breathable enough for hot weather but also works well as a base layer when temperatures drop. It dries quickly, resists odor and can transition from a trail to a plane or casual dinner.

I liked the tee so much that I ordered it in black. I can wear it with hiking clothes, pants and a scarf for urban exploring, or beneath a poncho or lightweight sweater. Ironically, in September and October 2026, it’s the black tee going from Africa to Peru.

The Active Lined Shorts are colorful, comfortable and easy to pack. They have become a favorite for workouts and beach trips.

For more trail-tested clothing, read my Coalatree Trailhead Pants review, see my favorite winter hiking outfit and check out the Icebreaker merino base layers I tested in the Yukon.

Affiliate disclosure: This post contains affiliate links. If you make a purchase through one of these links, I may earn a small commission at no additional cost to you. I only recommend products I have personally tested and genuinely use.