---
product_id: 362049182
title: "GSI Outdoors Boulder Flask, Shatter-Resistant, Leakproof Hip Flask with Clear Body & Silicone Grip, BPA-Free Bottle for Hiking, Camping & Travel"
brand: "gsi outdoors"
price: "11.25 DT"
currency: TND
in_stock: false
reviews_count: 13
url: https://www.desertcart.tn/products/362049182-gsi-outdoors-boulder-flask-shatter-resistant-leakproof-hip-flask-clear
store_origin: TN
region: Tunisia
---

# Leakproof hinged silicone cap Clear body with volume markings Shatter-resistant thermoplastic GSI Outdoors Boulder Flask, Shatter-Resistant, Leakproof Hip Flask with Clear Body & Silicone Grip, BPA-Free Bottle for Hiking, Camping & Travel

**Brand:** gsi outdoors
**Price:** 11.25 DT
**Availability:** ❌ Out of Stock

## Summary

> 🥾 Elevate your outdoor style with the Boulder Flask — rugged, reliable, and ready for your next adventure!

## Quick Answers

- **What is this?** GSI Outdoors Boulder Flask, Shatter-Resistant, Leakproof Hip Flask with Clear Body & Silicone Grip, BPA-Free Bottle for Hiking, Camping & Travel by gsi outdoors
- **How much does it cost?** 11.25 DT with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/362049182-gsi-outdoors-boulder-flask-shatter-resistant-leakproof-hip-flask-clear)

## 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

- • **Safe & Pure Sips:** BPA-free design guarantees no off-flavors, just clean, crisp refreshment wherever you roam.
- • **Featherlight Freedom:** At just 4 ounces empty, it won’t weigh you down on any hike, commute, or urban escape.
- • **Leak-Free Confidence:** Hinged silicone bumper cap ensures zero spills, keeping your gear dry and your vibe intact.
- • **See-Through Precision:** Transparent body with molded graduation marks lets you track your hydration or spirits on the go.
- • **Adventure-Proof Durability:** Tough thermoplastic resin resists shattering so you can take it anywhere without worry.

## Overview

The GSI Outdoors Boulder Flask is a 6-ounce, BPA-free, shatter-resistant hip flask made from durable thermoplastic resin. Featuring a clear body with volume markings and a leakproof hinged silicone cap, it’s designed for hiking, camping, and travel. Lightweight at just 4 ounces, it combines rugged durability with practical functionality for the modern adventurer.

## Description

Product description About GSI Outdoors Explore More GSI Camping Gear Boulder Flask 6 Oz Infinity Backpacker Mug Santoku Knife Set Glacier Stainless Perc Boulder Flask 10oz Cascadian Table Set

Review: Great flask!! - This is the best plastic flask I have bought. Highly recommend for the use and the durability. No leak, easy to unscrew the top and easy fill. Fits perfectly in a jacket pocket and not detectable with metal detectors (wink,wink).
Review: Very Nice and Looks Great - Love the look and feel of this flask. Only concern is that it maybe hard to clean - however, it shouldn't be a problem if you just keep liquor in it and not a sugary mix.

## Features

- NO METAL: Tough and shatter-resistant, the Boulder Flask can stand up to nearly any outdoor adventure; Thermoplastic resin body keeps your drink of choice intact
- Wide mouth opening makes for easy filling, pouring and drinking; Molded graduation marks help you quickly measure or see what’s left while you’re on the trail.
- See-through design for a fun and novel drinking experience; Hinged top with grippy silicone bumper makes for easier opening, helps prevent leaks and ensures you won’t lose the cap.
- Weighing only 4 ounces empty, the Boulder Flask won’t weigh you down even after you fill it.
- This BPA-free flask is durable, safe to drink from, and doesn’t have any foul or “off” aftertaste.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07YVKXMH3 |
| Best Sellers Rank | #9,422 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #8 in Camping & Hiking Hydration Flasks |
| Brand | GSI Outdoors |
| Brand Name | GSI Outdoors |
| Color | Sand |
| Customer Reviews | 4.4 out of 5 stars 514 Reviews |
| Finish Type | Unfinished |
| Finish Types | Unfinished |
| Global Trade Identification Number | 00090497793431 |
| Included Components | GSI Outdoors 79343 Boulder Flask 6 Oz Sand |
| Item Type Name | GSI Outdoors 79343 Boulder Flask 6 Oz Sand |
| Item Weight | 0.12 Kilograms |
| Manufacturer | GSI Outdoors |
| Manufacturer Part Number | 79343 |
| Material | Plastic |
| Material Type | Plastic |
| Model Name | 79343 |
| Model Number | 79343 |
| Shape | Rectangular |
| UPC | 090497793431 |
| Unit Count | 1.0 Count |
| Volume | 6 Fluid Ounces |

## Product Details

- **Brand:** GSI Outdoors
- **Color:** Sand
- **Finish Type:** Unfinished
- **Material:** Plastic
- **Shape:** Rectangular

## Images

![GSI Outdoors Boulder Flask, Shatter-Resistant, Leakproof Hip Flask with Clear Body & Silicone Grip, BPA-Free Bottle for Hiking, Camping & Travel - Image 1](https://m.media-amazon.com/images/I/61kjzYUH5YL.jpg)
![GSI Outdoors Boulder Flask, Shatter-Resistant, Leakproof Hip Flask with Clear Body & Silicone Grip, BPA-Free Bottle for Hiking, Camping & Travel - Image 2](https://m.media-amazon.com/images/I/71H+2llbfZL.jpg)
![GSI Outdoors Boulder Flask, Shatter-Resistant, Leakproof Hip Flask with Clear Body & Silicone Grip, BPA-Free Bottle for Hiking, Camping & Travel - Image 3](https://m.media-amazon.com/images/I/71QNvUqal9L.jpg)
![GSI Outdoors Boulder Flask, Shatter-Resistant, Leakproof Hip Flask with Clear Body & Silicone Grip, BPA-Free Bottle for Hiking, Camping & Travel - Image 4](https://m.media-amazon.com/images/I/71ULdH6c2oL.jpg)
![GSI Outdoors Boulder Flask, Shatter-Resistant, Leakproof Hip Flask with Clear Body & Silicone Grip, BPA-Free Bottle for Hiking, Camping & Travel - Image 5](https://m.media-amazon.com/images/I/71qlUZimUhL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great flask!!
*by K***T on September 6, 2025*

This is the best plastic flask I have bought. Highly recommend for the use and the durability. No leak, easy to unscrew the top and easy fill. Fits perfectly in a jacket pocket and not detectable with metal detectors (wink,wink).

### ⭐⭐⭐⭐⭐ Very Nice and Looks Great
*by D***S on May 8, 2026*

Love the look and feel of this flask. Only concern is that it maybe hard to clean - however, it shouldn't be a problem if you just keep liquor in it and not a sugary mix.

### ⭐⭐⭐⭐⭐ Water, water, everywhere…
*by U***P on June 20, 2021*

I got this to carry water with me in a small daypack or sling bag along with other daily essentials. While the flat design makes it very easy to pack in either bag, the rubber bumper that goes around the outside grabs on to my backpack when I’m trying to push the bottle down one of side pouches. It isn’t a big deal, but worth noting. It slips in and out of my sling bags with ease, and the size is just right for my purposes. The cap screws down securely and the bottle does not leak, it is clearly built quite tough, and being able to see through the smoke side makes it really easy to keep tabs on remaining water. One nice thing is that it doesn’t look too much like a hip flask, so drinking from it in public doesn’t feel weird, and it just looks like you’re drinking from a small water bottle. So far I’ve been very happy with it and would recommend it hands down.

## 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
- Stanley Adventure Pre-Party Flask | Leakproof Hip Flask | Hinge Connected Never Lose Cap | Insulated Stainless Steel Liquor Container | BPA-Free

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**Shop now:** [https://www.desertcart.tn/products/362049182-gsi-outdoors-boulder-flask-shatter-resistant-leakproof-hip-flask-clear](https://www.desertcart.tn/products/362049182-gsi-outdoors-boulder-flask-shatter-resistant-leakproof-hip-flask-clear)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-05-31*