The Duchess of Cambridge - who has a known love of sport - took part in a number of outdoor activities during a trip to Cumbria on Tuesday, and the wife of Prince William looked to be heartily enjoying herself.
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The mother-of-three - who is Honorary Air Commandant of the Royal Air Force Air Cadets - began her active day by joining a group of Air Cadets for mountain biking.
WATCH: Kate Middleton looks stunning in white
The mother-of-three may have been cycling, but that didn't stop her from looking as stunning as ever. She decided to wear black jeans and See By Chloe boots, and intially wore a khaki padded jacket by Seeland. Later on in the day, she took off the jacket and replaced it with a heritage print blazer from Really Wild. The brunette beauty wore her hair in a loose and flowing style - which look like it had been highlighted by the sun - and fresh makeup highlighted her pretty features.
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Kate looked beautiful in her heritage print blazer
The 39-year-old loves the great outdoors and often looks just as happy in jeans, barbour jackets and her trusty Penelope Chilvers riding boots with her hair in a ponytail, as she does wearing a ballgown or a pretty floral dress at royal events.
Belted jacket, £395, Really Wild
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GET THE LOOK: Belted jacket, £159.20 ($273.60), Karen Millen
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Kate's visit was important as it signaled the reopening of the RAF Air Cadets’Windermere Adventure Training Centre following a £2m refit.
Updated version of Kate's boots
See by Chloé buckle-fastened suede boots, £605, Farfetch
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The centre will enable hundreds of cadets from across the UK to be able to visit the Lake District each year and take part in a wide variety of activities, allowing them to build their confidence and leadership skills and achieve their Duke of Edinburgh Awards.
Earlier that day, Kate wore a padded jacket for cycling
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Seeland Hawker Quilted Jacket, £51.49, Wave Inn
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Later, Kate will will take part in a boat trip with two of the 'Windermere Children', a group of 300 child Holocaust survivors who came to stay in the Lake District in 1945 for a period of recuperation following the atrocities they experienced in concentration camps of Nazi Occupied Europe.
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