100% Cotton Preshrunk Drill 155gsm and 100% Polyester Mesh Lining with Insect Protection Treatment. Features; 2 piece contrast coloured collar with collar stays, large internal vented upper back area, 2 pleated chest pockets with touch-tape flaps, pen holder on both pockets, sunglasses hook near centre left pocket, roll-up sleeve tabs and buttons, locker loop at centre back, excellent sun protection with a rating of UPF 50+, full button-through style with buttoned, adjustable sleeve cuff, Permethrin Insect Protection unique treatment that stays effective for up to 100 washes.