![](https://s3images.coroflot.com/user_files/individual_files/1387003_b_jrvlbstqkj8rn_kzsiwzyop.jpg)
Harvey Lewis running with the backpack prototype at the 2022 Barkley Marathons
![](https://s3images.coroflot.com/user_files/individual_files/1387003_emgja6jbpuhzppfzibkgz8ssr.jpg)
![](https://s3images.coroflot.com/user_files/individual_files/1387003_t5jpym048an0o5ycz6h7reofj.jpg)
![](https://s3images.coroflot.com/user_files/individual_files/1387003_0rpqdmrwdfy6qy3j5t7i7m5uh.jpg)
Construction of the prototypes
![](https://s3images.coroflot.com/user_files/individual_files/1387003_oxi5w4ikybgyy5t_kxtbdpvds.jpg)
Harvey testing the first prototype I constructed
![](https://s3images.coroflot.com/user_files/individual_files/1387003_gy8ztfgxwy037csjpyhfg85k7.jpeg)
Harvey winning an ultramarathon in Malta wearing the race vest prototype
![](https://s3images.coroflot.com/user_files/individual_files/1387003_agqvxtnz_gt_jewyft4pcmtx7.jpeg)
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