.tsf-wb { max-width: 900px; margin: 0 auto; padding: 10px 0 20px; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif; color: #222222; line-height: 1.7; font-size: 14px !important; } .tsf-wb-tabs { display: flex; justify-content: center; gap: 8px; margin-bottom: 28px; } .tsf-wb-tab { padding: 12px 30px; background: #f2f2f2; border: 2px solid transparent; border-radius: 30px; color: #222222; font-family: inherit; font-size: 14px !important; font-weight: 600; cursor: pointer; transition: all 0.25s ease; letter-spacing: 0.02em; } .tsf-wb-tab:hover { background: #d2beae; color: #ffffff; } .tsf-wb-tab.tsf-wb-on { background: #a97142; color: #ffffff; border-color: #a97142; } .tsf-wb-sec { display: none; } .tsf-wb-sec.tsf-wb-on { display: block; } .tsf-wb-sec h3 { font-size: 15px !important; font-weight: 600; color: #222222; margin: 24px 0 10px; line-height: 1.5; } .tsf-wb-sec h3:first-child { margin-top: 0; } .tsf-wb-sec p { font-size: 14px !important; color: #222222; margin-bottom: 10px; line-height: 1.7; } .tsf-wb-sec p:last-child { margin-bottom: 0; } .tsf-wb-sec strong { color: #222222; } .tsf-wb-sec a { color: #a97142 !important; text-decoration: none !important; border-bottom: 1px solid #d2beae; transition: border-color 0.2s; } .tsf-wb-sec a:hover { border-bottom-color: #a97142; } .tsf-wb-sec ul { list-style: none; margin: 10px 0; padding: 0; } .tsf-wb-sec ul li { padding: 4px 0 4px 16px; position: relative; font-size: 14px !important; color: #222222; } .tsf-wb-sec ul li::before { content: ''; position: absolute; left: 0; top: 12px; width: 5px; height: 5px; background: #d2beae; border-radius: 50%; } .tsf-wb-note { background: #f2f2f2; border-left: 3px solid #d2beae; padding: 12px 16px; margin: 14px 0; font-size: 14px !important; border-radius: 0 8px 8px 0; color: #222222; } .tsf-wb-divider { height: 1px; background: #e8e8e8; margin: 20px 0; border: none; } .tsf-wb-sizes { display: flex; gap: 12px; margin: 16px 0; } .tsf-wb-size-box { flex: 1; background: #f2f2f2; border-radius: 12px; padding: 20px; text-align: center; } .tsf-wb-size-label { font-size: 18px !important; font-weight: 600; color: #a97142; margin-bottom: 6px; } .tsf-wb-size-range { font-size: 14px !important; color: #222222; } .tsf-wb-story-step { display: flex; gap: 16px; margin-bottom: 18px; } .tsf-wb-story-dot { flex-shrink: 0; width: 10px; height: 10px; background: #d2beae; border-radius: 50%; margin-top: 6px; } .tsf-wb-story-step:last-child .tsf-wb-story-dot { background: #a97142; } .tsf-wb-story-text { font-size: 14px !important; color: #222222; line-height: 1.7; } .tsf-wb-story-date { font-size: 12px !important; color: #a3a3a3; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 2px; } @media (max-width: 600px) { .tsf-wb-tab { font-size: 12px !important; padding: 10px 16px; } .tsf-wb-sizes { flex-direction: column; } } Product Size Guide Our Story This listing is for the Nylon Wrist Band only. A metal case (sold separately) is required to use this band with your Amazfit Helio Strap or Helio Ring Core. The Wristband Made from durable nylon - available in 4 colors (more colors coming soon) Designed for all-day comfort Two sizes available - please make sure to select the correct size using the Size Guide tab before ordering Looking for a bicep version? An Arm Band is also available here Shipping Shipping cost: 6 EUR worldwide Free shipping on orders over 60 EUR All orders are shipped directly from our warehouse with tracking included on every order. USA: 8-12 business days Europe: 7-10 business days Rest of the world: 8-12 business days Size Guide These bands come in two different sizes. This is particularly important if you have a very small or very large wrist to ensure a secure fit. How to measure correctly: For the best Heart Rate sensor accuracy, the band should be worn approximately 2cm (1 inch) above your wrist bone. Please measure your wrist circumference at that specific spot. S/M 135mm - 185mm M/L 185mm - 230mm If your wrist measures exactly 185mm, both sizes will work. We recommend S/M for a snugger fit or M/L if you prefer a looser feel. Built in Public, Driven by Community The Strap Forge started with a simple observation: the Amazfit Helio Strap is a great device, but its design is not exactly fashion-friendly. We set out to change that. See where it all started: Read the original Reddit post that launched the project. Feel free to reach out to me directly on Reddit (u/Tomtomtxz2) if you have any questions - I always reply. October 2025 The idea is born. First 3D-printed PLA prototype shared on Reddit. The community responds instantly - there is real demand for a premium Helio Strap. November 2025 The metal quest begins. Lost wax casting fails on tolerances. Electroplating peels off with sweat. CNC aluminum emerges as the only viable path for a truly premium product. December 2025 200+ survey responses. The community speaks. Production is greenlit. The CNC aluminum adapter goes live on the store with Gold, Silver and Black finishes. January 2026 First bulk order ships. Every single case is checked by hand. CNC buckles replace the standard ones because the quality was not good enough. No compromises. March 2026 Major operational shift. Warehouse model goes live. Shipping drops to 6 EUR worldwide with tracking on every order. Arm band version and Sandy White color on the way. This product would not exist without the Reddit community. Every iteration, every improvement came from real feedback. Want the full story? Read our complete development log: Build Log Follow the journey on YouTube and Reddit.