<p><strong>Waterproof Design</strong></p><p>The hard shell waterproof design keeps your cycling tools and essentials dry, no matter the weather, providing reliable protection on every ride.</p><p><strong>Rainproof Function</strong></p><p>With its rainproof function, this bag shields your belongings from moisture, ensuring they stay safe and dry during wet rides.</p><p><strong>Ultralight Material</strong></p><p>Crafted from lightweight nylon, this WEST BIKING bag ensures minimal impact on your bike's overall weight, enhancing your cycling experience.</p><p><strong>Versatile Storage</strong></p><p>Whether you choose the top or bottom tube bag, this versatile storage solution offers convenient access to your cycling tools and accessories.</p><br/><div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><p><strong><span style="color:rgb(211, 49, 21)">NOTED:</span></strong><span style="color:rgb(211, 49, 21)">There are two sizes, small and medium, in the link, please choose according to your needs.The measure met allowed error is +/- 1-3cm.</span></p><p></p></div></div><p><br/></p>