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Guide PIck

2021 Men's Apparel

Every year, Whittaker Mountaineering asks the guides at our sister company, RMI Expeditions, to give us their feedback on the best gear out there. RMI Guides eat, sleep, work, and play in their gear, which mean's we trust their judgement. Here you'll find the top picks from our guides for the 2021 season.

For a full breakdown of how to layer when climbing Rainier, click here.

Guide Pick Underwear

Patagonia Men's Sender Boxer Briefs - 6"

From $21.00

Smartwool Merino Sport 150 Boxer Brief

$35.00