The Prism Bootie from Montane is a lightweight, fully insulated camping slipper designed for maximum warmth and comfort at the end of a hard day's hiking or skiing.

The Rab Expedition Slipper is not a customizable product; it comes in one color, one down fill level, and four sizes. GooseFeet, however, offers a rainbow of color, fabric types, and fill levels. My measured weight for the booties was 5.75 oz/164 grams, consistent with the published weight of 5.8 ounces. Great indoors slippers with a durable rubber sole. Comfy and warm. I spend a lot of time at home and during the fall, winter, and early spring, keeping my feet warm and cozy is a priority. The last pair of slippers I had lasted about 10 years (with some modifications to make them more comfortable and durable, as if they were actual motorcycles): Dreaming of summer rides... So getting replacements for these (they're on their last miles) was a big consideration weighing price, comfort, and longevity. Full review Also, despite the temperatures being warmer than I would have preferred for the test, the booties did keep my feet warm and dry when walking around outside the tent during our low temperatures in the 20-30°F range.

What Makes Rab Hot Socks Unique?

PrimaLoft® GOLD Insulation with Grip Control in the inner sole panel to prevent insulation slipping and providing better stability

OUTSIDE OF SHARP END USE THEY MAKE A NICE CAMP SLIPPER, GOOD FOR LOUNGING AROUND BETWEEN TRIPS UP HIGH (MAYBE BRING 2 PAIRS TO LEAVE ONE STASHED AT A HIGH CAMP) AND ACTUALLY FIT OK INSIDE YOUR OUTER SHELLS FOR SHORT TRIPS OUTSIDE. Rab Expedition Slippers have a soft sole, made for sleeping, not walking around in camp. Elastic Foot Shaping Lightweight, but comfortable, foot covering for use in and around camp is a very desirable thing to have after a day of hiking or climbing, as well as waiting out a storm in the tent. Although we did not encounter any snow storms during the test period, we did spend some time waiting for scattered thunderstorms to die down.And, of course, since we did not wear our boots inside the ger, the booties provided comfortable foot cover. Hopefully, the forecast of a strong El Nino this winter for the Pacific Coast will provide an opportunity for more testing of the booties, at which point I will add an update. All indications in the testing in California, Japan, and Mongolia are that the Montane Prism booties serve their purpose well, and can replace all the collected booties I have in the closet. During our last few days in Mongolia, we stayed at a ger (aka yurt – the typical Mongolian dwelling) camp, the grass was very wet from the night’s thunderstorm and heavy dew in the morning for the walk to the dining ger, giving a good test of the water repellency of the Pertex shell. Despite the wet grass brushing against the outer shell during the couple hundred meter walk from our ger to the dining ger, the inside of the booties stayed completely dry. Faults deemed to have been caused by misuse or improper care (including washing not in accordance with the product wash care instructions) are not covered by the guarantee. The Rab Expedition Slipper is a slipper, not a hut bootie, and is not designed for wear outside of the quilt or for walking around. Traction

I would say the drawstring closure and foot shape of the Montane Prism Booties make them a better foot fit but the firm sole makes them less useful for sleeping in. So it is a toss-up between the two. But I would give the edge to the Montane Prism.Since this is a Limited Review, a detailed performance analysis based on long-term use will not be presented. Instead, performance observations and issues are noted below. Rab Expedition Slipper Warmth