Amazon.com is offering Sperian RWS-53006 Leightning L1 Slimline Low Profile Earmuff + Free Shipping on orders over $25.

Lightning L1 has a contemporary low profile, utlraslim earcups and a padded foam headband with ultra soft ear cushions providing great comfort. Durable steel wire headband features telescoping height adjustment. Patented Air Flow Technology delivers optimal attenuation across all frequencies. Noise Reduction Rating is 25.

2753-5368 Features: -Contemporary low profile, ultra slim ear cups .-Padded foam headband and ultra soft ear cushions .-Durable steel wire headband features telescoping height adjustment .-Patented Air Flow Technology delivers optimal attenuation across all frequencies .-Noise reduction rating NNR 25 .-Carded .

Technical Details:
Low Profile Ultraslim earcups
Patented Air Flow Technology
NRR 25
Telescoping height adjustment on headband
Padded foam headband and ultra soft ear cushions

ASIN: B001PCTSZK
Item model number: RWS-53006