Sierra: Shop Active & Outdoor Apparel, Footwear & Gear from Top Brands Explore men’s clothing for the outdoors and everyday—jackets, pants, layers, and more from top brands, all at Sierra’s at prices you won't believe. Top Hat was created by students for students, with the goal of helping everyone succeed in higher education. Whether you're logging in for the first time or looking to get the most out of our platform, we’re here to help.

Understanding the Context

Transform your course with Top Hat. Engage students with in-class polls, quizzes, and discussions, AI-powered assistance, and personalized content. Learn more! Are you a teaching assistant or co-instructor?

Key Insights

Contact your Top Hat course instructor and request access. You will then receive an email invitation to join the course. Welcome to Top Hat! Join Session By clicking Join Session, you confirm that you have read and agree to our User Agreement Choose from thousands of textbooks and course materials in the Top Hat Catalog, and collaborate in a unique community of educators The 16th edition of the QS World University Rankings by Subject is now live, offering one of the most comprehensive analyses of global higher education. This year, over 21,000 academic programmes from approximately 1,900 universities across 100 countries have been evaluated.

Final Thoughts

The rankings cover 55 individual subjects, organised into five broad faculty areas, providing detailed insights into top-performing institutions and disciplines worldwide. The world says to go harder, faster, stronger – but at Sierra, we say “go however you want.” From hiking up mountains to strolling down the block, we love it all. Shop our selection of outdoor gear at Sierra. Find the best gear for any outdoor activity including camping, hiking, hunting, running, and skiing. Find the best outdoor brands including UMPQUA, Giro, The North Face and more for less.