21mm Curved-End Silicone Sport-Style Watch Strap – Textured Rubber
1-year warranty on watch movement
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About this item
The 21mm Curved-End Silicone Sport-Style Watch Strap combines modern design with superior comfort. Designed to fit sport watches with rounded-square cases and 21mm lugs, it brings a refined look similar to popular luxury sport models while maintaining everyday durability.
Crafted from premium silicone rubber, this strap is soft, flexible, and fully waterproof — ideal for both active and casual wear. Its grid-textured surface enhances grip and ventilation, while the curved ends ensure a seamless fit against the watch case. Choose between strap only or strap with stainless steel butterfly clasp options for your preferred style.
Available in five colors — black, brown, blue, green, and orange — this strap offers a versatile upgrade for any 21mm sport watch.
Key Features:
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Sport-Style Curved-End Design – fits 21mm rounded-square watch cases
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Premium Silicone Material – soft, flexible, and sweat-resistant
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Grid-Textured Pattern – improves comfort and ventilation
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Optional Stainless Steel Butterfly Clasp – secure and elegant fit
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Five Color Options – black, brown, blue, green, orange
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Easy Installation – includes spring bars and tool
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Ideal for swimming, outdoor activities, or daily wear
Specifications:
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Material: High-Grade Silicone Rubber
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Width: 21 mm
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Length: 20 cm
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Color Options: Black / Brown / Blue / Green / Orange
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Clasp Type: Optional Stainless Steel Butterfly Clasp
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End Type: Curved-End
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Compatibility: 21mm sport watches with rounded or cushion cases
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Water Resistance: Yes – sweatproof and waterproof
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Included Items: 1 × Strap (strap only or with clasp), 2 × Spring Bars, 1 × Tool
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Condition: New / With Packaging
A durable and comfortable sport-style strap designed to complement modern rounded-square watches — combining comfort, precision fit, and versatile style.