Gravestone 21L Backpack Travel Gym Bag - Water-Resistant Carry On

Our review of the Gravestone 21L Backpack finds it best suited for gym-goers, commuters, and travelers who want a single carry that organizes workout gear and a laptop without extra bulk. The standout reason to buy is its thoughtful compartmentalization: a dedicated laptop sleeve plus a separate shoe compartment keeps training items isolated and the rest of your kit neat. Built from 900D TPU coated polyester with water-resistant construction and an EVA foam padded backing, it balances protection, comfort, and versatility for daily use.

Key Features

• 21L capacity: Offers enough room for a laptop, workout clothes, shoes and daily essentials while staying compact for carry on use.
• Water-resistant fabric: 900D TPU coated polyester protects contents from light rain and moisture, helping keep electronics and clothing dry.
• Dedicated shoe compartment: Separates footwear to keep odors and dirt away from clothes and electronics for cleaner organization.
• EVA foam padded backing: Provides cushioning and breathability that reduces pressure on the back during longer carries.
• Multiple pockets and molle straps: Quick-access exterior pockets and a D-ring on molle straps let you stow keys, phone, a 32oz water bottle and attach small accessories.

Who It's For

The Gravestone 21L is ideal for someone who alternates gym sessions with office or travel days and needs a single bag that manages both. Commuters who carry a laptop and workout gear will appreciate the shoe compartment and sectioned storage that prevent cross-contamination between shoes and electronics.

Those who need oversized luggage or heavy-duty expedition gear should look elsewhere, since the 21L volume is intentionally compact. If you regularly pack bulky winter layers or multiple pairs of shoes, a larger travel bag would be a better fit.

Pros & Cons

Pros

• Well-organized interior with a dedicated laptop sleeve and shoe compartment keeps items separated and accessible.
• Durable, water-resistant 900D TPU coated polyester offers reliable protection against light weather and wear.
• Comfortable carry thanks to EVA foam backing and padded shoulder straps with a security buckle for stability.
• Useful exterior features including a 32oz-compatible bottle pocket, multiple zippered pockets, and molle D-ring for attachments.

Cons

• At 21L the capacity is compact and may not suit those needing larger or bulkier storage for extended travel.

Specifications

Capacity	21L
Material	900D TPU coated 100% polyester
Weather protection	Water-resistant
Padding	EVA foam padded backing
Dedicated slots	Laptop sleeve and shoe compartment
Extras	Side bottle pocket (fits up to 32oz), molle straps with D-ring

Our Verdict

The Gravestone 21L Backpack is a practical, well-built everyday carry for people who need to transport a laptop and gym kit without a bulky bag. Its water-resistant fabric, organized compartments and comfortable EVA foam backing make it good value for commuters and active travelers who prioritize neat storage and durability.

Frequently Asked Questions

Will a 15 in laptop fit?
Yes, the backpack includes a dedicated laptop sleeve sized for typical 15 in laptops.

Is the bag waterproof?
The material is water-resistant (900D TPU coated polyester) and protects against light rain, but it is not fully submersible waterproof.

Can it carry a full set of gym gear?
It can carry a change of clothes, shoes in the shoe compartment and small accessories, but the 21L volume is compact for larger or multiple gear sets.