How to Choose a CrossFit Backpack | What Actually Matters

Most athletes haul the same kit to the box: lifting shoes, wrist wraps, knee sleeves, a jump rope, grips, a towel, a shaker, and a change of clothes. A backpack that can’t swallow all of it without bulging at the seams will frustrate you every single session. The right bag balances rugged materials with smart compartments, sized for your actual routine—not a guess at what looks tough on the shelf.

What Size Backpack Do You Need for CrossFit?

The best all-around size for most CrossFit athletes is between 35L and 45L. That range fits a pair of shoes, a full change of clothes, a towel, grips, a belt, and a shaker without forcing you to strap gear to the outside.

If you train before or after work, add one more requirement: a dedicated laptop sleeve. A 35L–45L pack with a padded compartment handles both a work laptop and your gym kit, which means one bag for the whole day.

For anyone who wants a lighter, more compact option, the CrossFit Store’s Crossbody Bag measures just 6.7 x 10.24 x 2 inches—small enough for a phone, keys, wraps, and a change of clothes, but not for lifting shoes.

Which Materials and Features Hold Up in a Gym Environment

Durability starts with the fabric. It’s the same class of fabric used in tactical and military gear, which tells you what it survives.

Beyond the shell, the features that separate a good training backpack from a disappointing one are practical:

• Wide zip openings that let you see and grab items without digging blind
• Side bottle pockets that hold a shaker upright instead of leaking sideways
• Rugged zippers and pulls that survive chalk-covered fingers
• Front hook-and-loop panels for attaching extra pouches or patches
• Water-resistant lining that keeps sweat and wet clothes from soaking your other gear

The single most useful upgrade is a separate shoe compartment. Lifting shoes come home caked in chalk and dust, and a dedicated vented pocket keeps that grit away from your clean clothes. If a bag lacks one, look for an internal divider that can do the same job.

Should You Buy One of the CrossFit Store’s Current Bag Options?

The CrossFit Store’s current lineup covers two distinct needs.

Both are official CrossFit-branded items, which matters if you want the logo to match your commitment. That said, neither is a true 35L–45L training backpack, so athletes hauling full kits should look at the broader options in the CrossFit Store’s CrossFit bag collection or compare against other training packs built to those larger dimensions.

For a tested head-to-head of the best CrossFit backpacks available right now, our roundup of top-rated CrossFit backpack picks breaks down the strongest contenders by capacity, price, and feature set.

The Three Mistakes That Ruin a CrossFit Backpack Purchase

Most disappointing gym bags fail in the same three ways, and all of them are avoidable if you know what to check before you buy.

Buying too small. Shoes, wrist wraps, knee sleeves, a towel, a shaker, and a change of clothes fill a 25L pack instantly. Athletes who buy compact bags for convenience end up carrying a second bag within a month. Measure your actual daily kit before you commit to a size.

Ignoring the laptop question. If the bag will double as a commuter pack, a padded laptop sleeve is non-negotiable. Plenty of training bags skip this compartment entirely, so verify it exists in the product details before ordering—don’t assume it comes standard.

Overlooking wet and dirty separation. A shoe compartment or a dedicated pocket for dirty clothes keeps sweat-soaked gear from contaminating everything else in the bag. Without separation, your work clothes smell like yesterday’s workout by the time you reach the office.

If you can only buy one pack that handles training and commuting, a 40L bag with a laptop sleeve and a shoe compartment covers both worlds. If you drive to the gym and change there, a simpler pack with good organization is plenty.