--- product_id: 384350954 title: "GSI Outdoors - Boulder 10 Flask 10 fl. oz, Graphite" brand: "gsi outdoors" price: "€ 180.64" currency: EUR in_stock: true reviews_count: 5 category: "Gsi Outdoors" url: https://www.desertcart.be/products/384350954-gsi-outdoors-boulder-10-flask-10-fl-oz-graphite store_origin: BE region: Belgium --- # Molded graduation marks Hinged, silicone-grip top Shatter-resistant copolyester GSI Outdoors - Boulder 10 Flask 10 fl. oz, Graphite **Brand:** gsi outdoors **Price:** € 180.64 **Availability:** ✅ In Stock ## Summary > 🥃 Elevate your adventure—sip smart, sip stylish. ## Quick Answers - **What is this?** GSI Outdoors - Boulder 10 Flask 10 fl. oz, Graphite by gsi outdoors - **How much does it cost?** € 180.64 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/384350954-gsi-outdoors-boulder-10-flask-10-fl-oz-graphite) ## Best For - gsi outdoors enthusiasts ## Why This Product - Trusted gsi outdoors brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Sleek & Compact:** Lightweight, slim graphite design fits discreetly in your jacket or bag for on-the-go sipping. - • **Never Lose Your Lid:** Hinged top with silicone grip stays attached and opens smoothly every time. - • **Effortless Hydration:** Wide mouth design allows easy filling, pouring, and drinking—no spills, no fuss. - • **Precision at a Glance:** Convenient molded graduation marks let you track your pour with confidence. - • **Adventure-Ready Durability:** Shatter-resistant copolyester body with a grippy silicone bumper means this flask survives every journey. ## Overview The GSI Outdoors Boulder 10 Flask is a 10 fl. oz. durable, shatter-resistant flask crafted from copolyester resin with a silicone bumper for extra grip and protection. Featuring a wide mouth for easy filling and pouring, a hinged silicone-grip top that won’t get lost, and molded graduation marks for precise measurement, this sleek graphite flask is designed for the modern adventurer who values both function and style. ## Description The GSI Outdoors' Boulder Flask features a fun see-through and shatter-resistant design to take on your adventure. Review: Flachmann mit Sichtfenster - Endlich ein Flachmann bei dem man sieht wie viel noch drinnen Ist. Review: Resistente - Bastante resistente, compacta y ligera. No tiene fugas y se puede guardar hasta en una sudadera por el tamaño. ## Features - Shatter-resistant, copolyester resin body and grippy, silicone bumper mean this flask can go anywhere. Wide mouth makes for easy filling, pouring and drinking. Hinged top with silicone grip is easy to open and impossible to misplace. Convenient molded graduation marks. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07W6B1Z5V | | Brand | GSI Outdoors | | Colour | Graphite | | Country of Origin | USA | | Customer Reviews | 4.6 out of 5 stars 643 Reviews | | Item Dimensions D x W x H | 2.8D x 9.4W x 16.5H Centimeters | | Item Volume | 10 Fluid Ounces | | Manufacturer | GSI Outdoors | | Manufacturer Part Number | 79346 | | Model Name | Boulder 10 Flask | | Model number | 79346 | | Product Dimensions | 2.8D x 9.4W x 16.5H Centimeters | | Shape | Rectangular | | Unit Count | 1.0 Count | | Volume Capacity | 10 Fluid Ounces | ## Product Details - **Brand:** GSI Outdoors - **Colour:** Graphite - **Item Volume:** 10 Fluid Ounces - **Product Dimensions:** 2.8D x 9.4W x 16.5H Centimeters - **Shape:** Rectangular ## Images ![GSI Outdoors - Boulder 10 Flask 10 fl. oz, Graphite - Image 1](https://m.media-amazon.com/images/I/61rqHnxqh4L.jpg) ![GSI Outdoors - Boulder 10 Flask 10 fl. oz, Graphite - Image 2](https://m.media-amazon.com/images/I/71Ql5AVd74L.jpg) ![GSI Outdoors - Boulder 10 Flask 10 fl. oz, Graphite - Image 3](https://m.media-amazon.com/images/I/71it1oM412L.jpg) ![GSI Outdoors - Boulder 10 Flask 10 fl. oz, Graphite - Image 4](https://m.media-amazon.com/images/I/71VIhmfMsWL.jpg) ![GSI Outdoors - Boulder 10 Flask 10 fl. oz, Graphite - Image 5](https://m.media-amazon.com/images/I/61Fg9jDFX7L.jpg) ## Questions & Answers **Q: Is this flask made in China?** A: It just says imported. I dont see where it says from. **Q: Is this made of plastic? What kind of plastic? What is the recycle/plastic number on the bottom?** A: I'm not sure what kind of plastic but its really durable , i haven't had any issue **Q: Does this have any metal? Will this set off a metal detector?** A: No metal, **Q: Is it boa free?** A: Yes, it is. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Flachmann mit Sichtfenster *by S***R on 14 April 2026* Endlich ein Flachmann bei dem man sieht wie viel noch drinnen Ist. ### ⭐⭐⭐⭐⭐ Resistente *by F***S on 20 September 2024* Bastante resistente, compacta y ligera. No tiene fugas y se puede guardar hasta en una sudadera por el tamaño. ### ⭐⭐⭐⭐⭐ flask *by P***D on 3 January 2025* lightweight and easy to fill ## Frequently Bought Together - Gsi Outdoors Boulder Flask Thermos,Unisex Adult, Unisex_Adult - SE Stainless Steel Funnel for Flasks, Small Metal Funnel for Filling Drinking Liquor Flask, Transferring Oil, Juice, Milk, Attached Screw-On Cap --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/384350954-gsi-outdoors-boulder-10-flask-10-fl-oz-graphite](https://www.desertcart.be/products/384350954-gsi-outdoors-boulder-10-flask-10-fl-oz-graphite) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-06-23*