Frequently Asked Questions
What age range are the Oakley Field Marsh 8031 eyeglasses designed for?
Are Oakley Field Marsh frames durable enough for active kids?
Can I add prescription lenses to the Oakley Field Marsh 8031?
What is O Matter and why is it good for kids' eyeglasses?
What sizes are available for the Oakley Field Marsh 8031?
How do I care for Oakley Field Marsh eyeglasses?
Compare With Similar Frames
How the Oakley Field Marsh 8031 Eyeglasses stacks up against the closest alternatives we carry.
- Slightly more color options (6 colorways vs 5)
- Similar youth-specific fit and O Matter durability
- Comparable price point ($90-$156)
- Lower price point ($77-$123 vs $135)
- Square frame shape offers a different look
- Same O Matter construction and youth-specific fit
- More aggressive sport-oriented design
- Enhanced grip features for athletic activities
- Similar price range ($75-$135)
Read the full comparison
Oakley Field Marsh 8031 vs Other Youth Eyeglasses
Choosing the right eyeglasses for your child means balancing durability, fit, style, and value. The Oakley Field Marsh 8031 sits in the middle of Oakley's youth eyewear lineup, offering a versatile rectangular design that works for school, sports, and everyday wear. Here's how it compares to other popular Oakley youth frames.
Field Marsh 8031 vs Field Day 8007
The Oakley Field Day 8007 is the closest comparison to the Field Marsh—both are rectangular full-rim frames designed for kids aged 8-12, both use O Matter construction, and both offer similar sizing options. The main differences are subtle: the Field Day offers six colorways versus the Field Marsh's five, and the Field Day's price range tops out slightly higher ($90-$156 vs $135 flat). In terms of styling, the frames are nearly identical, so your choice may come down to which specific color your child prefers. Both deliver the same lightweight comfort and impact resistance that make Oakley youth frames popular with active kids.
Field Marsh 8031 vs Shifter XS 8001
The Oakley Shifter XS 8001 offers a more budget-friendly option at $77-$123, making it appealing for parents who want Oakley quality at a lower price point. The key difference is the frame shape: the Shifter XS features a square design versus the Field Marsh's rectangle. Square frames can look bolder and more modern, but rectangular frames like the Field Marsh tend to be more universally flattering across different face shapes. If your child has a rounder face, the Field Marsh's rectangular shape may provide better balance. If budget is a primary concern and the square aesthetic works for your child, the Shifter XS delivers the same O Matter durability for less.
Field Marsh 8031 vs Crosslink XS 8002
For kids heavily involved in sports, the Oakley Crosslink XS 8002 ($75-$135) is worth considering. The Crosslink XS has a more aggressive, sport-focused design with enhanced grip features and a wraparound feel that stays secure during high-impact activities. However, this sporty aesthetic may be too bold for everyday school wear. The Field Marsh strikes a better balance—it's durable enough for recess and weekend sports but understated enough for the classroom. If your child plays competitive sports and needs glasses that can handle intense movement, the Crosslink XS is the better choice. For all-around versatility, the Field Marsh is the winner.
Why Choose the Field Marsh 8031?
The Oakley Field Marsh 8031 is the ideal middle-ground option for parents seeking youth eyeglasses that are durable, comfortable, and versatile. The rectangular shape is universally flattering, the O Matter construction delivers proven impact resistance and flexibility, and the clean design works in any setting. At $135, it's competitively priced within Oakley's youth lineup and offers excellent value for a frame that will stand up to the demands of an active child's lifestyle.
At a Glance
Oakley Field Day 8007 Eyeglasses
Pros:
- Slightly more color options (6 colorways vs 5)
- Similar youth-specific fit and O Matter durability
- Comparable price point ($90-$156)
- Full-rim rectangular design like the Field Marsh
Cons:
- Very similar styling may not offer enough differentiation
- Same target age range means no size advantage
- Slightly higher price range at the top end
Oakley Shifter XS 8001 Eyeglasses
Pros:
- Lower price point ($77-$123 vs $135)
- Square frame shape offers a different look
- Same O Matter construction and youth-specific fit
- Good option for budget-conscious parents
Cons:
- Square shape may not suit all face shapes as well as rectangular
- Fewer color options in some variants
- Less modern aesthetic compared to Field Marsh
Oakley Crosslink XS 8002 Eyeglasses
Pros:
- More aggressive sport-oriented design
- Enhanced grip features for athletic activities
- Similar price range ($75-$135)
- Proven performance in youth sports
Cons:
- More sporty aesthetic may be too bold for everyday school wear
- Less versatile styling compared to Field Marsh
- May not suit kids who prefer understated frames



