I tried buying this one: Amazon.com: Scosche Rhythm+ Replacement Strap - Green Strap For Scosche Rhythm+ Optical Heart Rate Monitor Armband: Health & Personal Care

But it didn't fit, the strap was too wide. Anyone have luck with it, or have a different one to recommend?

Etsy

Amazon

HRM USA

if it's the flex you can buy spare bands on amazon, search for scosche rhythm + ... if it's the burn, I don't think there's 3rd party bands

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https://www.amazon.com/Scosche-Rhythm-Replacement-Strap-Optical/dp/B00XM1F5LS/ref=sr_1_fkmrnull_3?crid=1RL6USUH2UCBK&keywords=scosche%2Brhythm%2B%2Breplacement%2Bstrap&qid=1549586558&sprefix=scosche%2Brhyt%2Caps%2C600&sr=8-3-fkmrnull&th=1

Might consider this. Its not orange, should be perfect replacement.

Scosche Rhythm+ Replacement Strap - Green Strap For Scosche Rhythm+ Optical Heart ... https://www.amazon.com/dp/B00XM1F5LS/ref=cm_sw_r_sms_c_api_i_zvrQDbVWH383A

They sell them on amazon.

Scosche Rhythm+ Replacement Strap - Green Strap For Scosche Rhythm+ Optical Heart Rate Monitor Armband https://www.amazon.com/dp/B00XM1F5LS/ref=cm_sw_r_cp_api_i_25VuFb0J3C8RZ