A high end mountaineering boot should be equal parts warm, well fitting, waterproof and durable, and the Lhotse is one of the best we've seen. The Gore Tex and Duratherm lining takes care of warmth and waterproofness (in all weather and altitudes), and the Makalu-derived last has medium to high volume to accommodate sock layering (and to deal with the inevitable swelling of your feet while climbing). As for actual mountain performance, the Lhotse's MPE soles provide an air cushion ride, are step-in crampon compatible and eat mixed terrain with hardly a whimper.
CDBURNS - May 26, 2004 2:30 am - Voted 5/5
Untitled ReviewThe Glaciers are the lightest and offer the most flexibility, however they're not insulated and aren't stiff enough for ice climbing (good for back packing, although they are newmatic crampon compatible).
The Makalus are stiffer and step-in crampon compatible, although they are uninsulated as well (good for summer mountaineering, heavy backpacking and cool weather ice climbing).
The Lhotses are basically insulated Makalus with two additional lacing eyelets (the higher ankle makes them more comfortable than the Makalu, as they flex a little better). They work well on long approach hikes, and I have had no problem with durability after a full winter of use. They didn't require any break-in, as I used them right out of the box on a 14 mile climb of MT Marcy, NY in FEB without any blisters or abrasion. I found them very warm in up to -20F conditions (my feet have never been cold wearing these boots).
If you're doing any winter camping or high altitude (and require a double boot), I would recommend the Nuptses (see my other review). I'm sold on La Sportivas, as they are well made and comfortable, and they offer half sizes up to 13.