---
product_id: 362049182
title: "Boulder Flask, Shatter-Resistant, Leakproof Hip Flask with Clear Body & Silicone Grip, BPA-Free Bottle for Hiking, Camping & Travel"
brand: "gsi outdoors"
price: "€ 39.22"
currency: EUR
in_stock: true
reviews_count: 13
category: "Gsi Outdoors"
url: https://www.desertcart.hr/products/362049182-boulder-flask-shatter-resistant-leakproof-hip-flask-with-clear-body
store_origin: HR
region: Croatia
---

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

**Brand:** gsi outdoors
**Price:** € 39.22
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 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?** € 39.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/362049182-boulder-flask-shatter-resistant-leakproof-hip-flask-with-clear-body)

## 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

desertcart.com : GSI Outdoors, Boulder Flask, Rugged and Shatter-Resistant, Outdoor Hip Flask, Sand, 6 Fluid Ounces : Sports & Outdoors

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: Great for snug spaces! - Great little water bottle if you're a little tight on space, since a more flat-ish shape works nicely in a lot of the bags I use. 10oz is a good amount for sipping on or just getting you through a few hours outside before your next fill up, though it'll go quick if you're thirsty! I can't speak to its durability over time, since I haven't had it for very long, though it appears to be all that it's advertised to be! Plastic feels pleasantly firm, the cap doesn't leak (At least mine doesn't), didn't seem to have any lingering flavors after an initial rinse or two, and is a great way to keep an eye on how much I have left to drink! Only thing holding it back for me is that despite the rubberized exterior being a great accent for color and some added cushion, it also makes it a little grippy when trying to slide into bags as well as possibly picking up little bits of dust and debris easily from wherever you set it down. Not a deal breaker for me, but I wouldn't mind seeing another style that's less rubberized!

## 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 | #12,920 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #11 in Camping & Hiking Hydration Flasks |
| Brand Name | GSI Outdoors |
| Color | Sand |
| Customer Reviews | 4.5 4.5 out of 5 stars (499) |
| 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 |
| Material Type | Plastic |
| 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

![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)

## 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).

### ⭐⭐⭐⭐⭐ Great for snug spaces!
*by S***S on May 19, 2023*

Great little water bottle if you're a little tight on space, since a more flat-ish shape works nicely in a lot of the bags I use. 10oz is a good amount for sipping on or just getting you through a few hours outside before your next fill up, though it'll go quick if you're thirsty! I can't speak to its durability over time, since I haven't had it for very long, though it appears to be all that it's advertised to be! Plastic feels pleasantly firm, the cap doesn't leak (At least mine doesn't), didn't seem to have any lingering flavors after an initial rinse or two, and is a great way to keep an eye on how much I have left to drink! Only thing holding it back for me is that despite the rubberized exterior being a great accent for color and some added cushion, it also makes it a little grippy when trying to slide into bags as well as possibly picking up little bits of dust and debris easily from wherever you set it down. Not a deal breaker for me, but I wouldn't mind seeing another style that's less rubberized!

### ⭐⭐⭐⭐⭐ One tough cookie!
*by D***G on November 23, 2025*

Driving down the road at 55 mph I hear a thump. Looking in my rear view mirror I see something tumbling down the middle of the road behind me. Suddenly I remember setting my flask on top of my car before leaving home. I turn around to retrieve the flask overjoyed to discover that it only suffered a bit of stuffing on the screw cap. This thing really is shatter resistant! Perfect size for those 3 -4 mile walks. Fits nicely in a pocket.

## 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.hr/products/362049182-boulder-flask-shatter-resistant-leakproof-hip-flask-with-clear-body](https://www.desertcart.hr/products/362049182-boulder-flask-shatter-resistant-leakproof-hip-flask-with-clear-body)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-13*