Ortovox Piz Boe Light Tec Insulated Short

Backcountry.com says:
Layering legs can be a trick affair. Layer too much and you'll end up waddling up the skin track like a penguin; layer too little and you'll be doing more shivering than schussing on the descent. Luckily, Ortovox has developed an elegant solution to your dilemma with its Men's Piz Boe Light Tec Insulated Shorts. Insulated with sustainably sourced Swisswool, these light and compact shorts make an excellent midlayer for alpine touring and mixed climbing in the mountains. They're highly breathable thanks to a Merino wool lining, and with an ergonomic fit, they'll layer nicely under hard or softshell pants.