To date, I have worn the TRIKini on a 4-night rim-to-rim hike of the Grand Canyon in early June, during 2 days of dayhiking in Grand Canyon National Park prior to the rim-to-rim, and on several local walks and around the house. On my rim-to-rim hike, I travelled 6.9 miles(11.1 km) with an elevation loss of 4200 feet (1280 m) the 1st day, and 7.6 miles (12.2 km) with an elevation loss of 1550 feet (472 m) the 2nd day. The 3rd day I dayhiked part of the Clear Creek Trail in the morning, over 6 miles (9.7 km) round trip with an elevation gain and loss of 1520 feet (463 m). The evening of the 3rd day I dayhiked up Phantom Creek a little, about 5 miles (8 m) round trip with an elevation gain/loss of about 300 feet (91 m). The 4th day I backpacked 4.7 miles (7.6 km) with an elevation gain of 1350 feet (411 m), and a final hike out of 4.6 miles (7.4 km) with 3040 feet (927 m) of elevation gain on day 5.

The TRIKini is comfortable to wear, and although it does tend to ride up a little on its own, when I tuck it under my shorts or hiking capris or am wearing my backpack it usually stays in place. It's a little odd for me to wear it in a car with a shoulder-strap seatbelt. Since the bra doesn't have separate cups and the fabric of the shirt is slick, the shoulder harness tends to slip around.

The Cleavage Alley pocket works well, it was so comfortable that when I stored a gel there for a dayhike on the North Rim of the Grand Canyon I completely forgot it was there, though it would have been nice to use the gel since I hadn't brought any food.

As a tank top and bra, the TRIKini was very comfortable to backpack in. The built-in bra offered me enough support for backpacking. I had no problems with my upper back sticking to the backpack. The only drawback that this shirt presented was due to the fact it is a tank top. The first day of backpacking was overcast and I spent a decent part of the day in the shade as well, but I noticed that the very ends of my shoulders were getting a little pink. I thought that being a little more liberal with the sunscreen and applying it a couple times throughout the day would solve that problem. So the second day I ended up applying sunscreen twice, once before starting, and once after lunch. This effort failed miserably, as I ended up with very red and tender shoulders (see picture below). I think that what happened was that whenever I put on my pack after a break, the shoulder straps of the pack would scrape off the sunscreen. The remaining three days of the trip I wore the TRIKini underneath a short-sleeve shirt. Since I don't want to reapply sunscreen on my shoulders after every packs-off break, for any future backpacking trips I will probably use it as a sole top only if I know I will be in the shade most of the time. I think I would be fine on most of my Michigan hikes, but I now know that a tank top is not the thing for me when I backpack very sunny environments.

The TRIKini held up well for the five straight days of use (I think I slept in it most nights as well), it didn't have a noticeable stink (though by the end of the last day I was probably immune to my own stench) and I didn't notice any horrible odors from it when I tossed it back in my luggage later in the trip. The main fabric didn't get badly stained with sweat or anything, thought the white piping around the neck and arm holes had turned orange-pink from sweat & canyon dust. A normal wash cleared up the shirt nicely, though the piping was still dirty. A second washing using Zout, a spot-cleaner that gets rids of all sorts of tough stains managed to clean up the grime.

Sometime during the first 2 days of my rim-to-trim hike, the label that was fused to the inside back of the TRIKini fell off. There's a slightly darker rectangular area on the fabric where it used to be, though the area is not sticky or anything. The skirt logo on the back of the shirt is still there, though it's pulled apart into little chunks when the fabric stretches. The "Skirt Sports" logo fused on the front is starting to peel. There is a small area of the shirt that is starting to pill, though I think that I might have brushed up against something rough or the washing machine might've caught it, since the pilling is only in one small area.

The TRIKini provided me with an added (and unforeseen) bonus, as I now often wear it as a night shirt at home. As of the writing of this report I am 2 months pregnant, and am experiencing all the typical breast issues that women encounter early in pregnancy. Several books I've read recommend wearing sports bras to bed, and so far I have not been able to find a more comfortable sports bra. I am now up to almost a DD size cup, and the TRIKini is still comfy and the straps don't dig into my shoulders.